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“unsupported SD card” error

Galaxy S7 edge slow in sending MMS after an update, other issues

As the newly-released #GalaxyS8 continues to dominate the technology world, we are also receiving ever-increasing number of #GalaxyS7 issues. May this post will become another good reference for those looking for solutions to their S7 problems.

Below are the specific topics we’re covering for you:

  1. Galaxy S7 edge screen size became bigger
  2. Galaxy S7 screen is black and won’t turn on
  3. Galaxy S7 can’t delete photos and videos from SD card
  4. Galaxy S7 screen showing pixelated part
  5. Galaxy S7 edge slow in sending MMS after an update
  6. Galaxy S7 not receiving copies of emails
  7. Galaxy S7 won’t allow access to camera, memory unsupported error, won’t take PIN
  8. Galaxy S7 getting error when trying to install TWRP

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page, or you can install our free app from Google Play Store.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.


Problem #1: Galaxy S7 edge screen size became bigger

I was taking a picture with my S7 edge. I clicked to picture to review and my phone froze. I reset and the screen is zoomed in about 25% with large text display. The lock screen pattern is full screen. ALL accessibility options are off (zoom, etc.) Font size is small and icons are small. It’s like the default screen setting is zoomed in 25-30%. I tried wiping the system cache, safe mode, nothing works. I really don’t want to factory reset, what else can I try? — Jim

Solution: Hi Jim. We don’t have a complete picture on what happened to your device prior to noticing the problem so factory reset is the only resort we can suggest. As far as icon screen size and font size are concerned, there are only two options that we can modify under Settings app — font size and icon size. If changing them did not work, perform a factory reset.

Problem #2: Galaxy S7 screen is black and won’t turn on

Hi! I have a basically brand new Galaxy S7 that won’t work. The screen has no cracks and definitely no water damage. It’s a plain black screen EXCEPT for the home key and back button which will light up like it’s responding fine. Also, I have the blue flashing light and when charging red light. it even still makes the vibration when touching the home key etc. I tried the hard restart you suggested, but was curious If this could possibly be a loose or disconnected wire on the inside of the phone? I didn’t get warranty when purchasing, bought it at Walmart and forgot to call into my provider after the purchase unfortunately and don’t want to spend 300+ to fix it if I don’t have to. — Jpoulin5377

Solution: Hi Jpoulin5377. This is obviously not a boot problem as your phone clearly powers on so there’s only one problem here — malfunctioning screen assembly. If you can’t fix the problem by booting the phone to alternate modes, then sending the device in is the only option for you. We can’t possibly know what is wrong with your phone unless it’s been physically check and relevant diagnostics are done. Hard it may be but if you want to use the phone again, you must invest in repair.

For reference, here are the steps on how to boot an S7 to alternate modes:

Boot in Recovery mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. You can either wipe the cache partition or do a factory reset when in this mode.

Boot in Download Mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  4. Wait until the Download screen appears.
  5. If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.
  6. Use Google to look for a guide on how to do it.

Boot in safe mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and hold the Power button.
  3. Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  4. Continue holding the button until the phone finishes rebooting.
  5. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  6. The only difference of safe mode from normal mode is that the former prevents third party apps from running. If you can boot the phone in safe mode but not in normal mode, uninstall all apps until the issue (that prevents you from booting normally) is eliminated.

Problem #3: Galaxy S7 can’t delete photos and videos from SD card

Hello. I’m unable to delete pictures and videos from the SD card on my Galaxy S7 edge. More specifically, I delete the photos and videos and for about 30 to 60 seconds they appear to be removed from SD card. In no time at all though, they slowly start reappearing and in a few minutes all the photos I deleted are on my phone (on the SD card) again. I am able to delete photos and videos from the internal storage on the phone, with no issues at all. I’m hoping you can point me in the right direction. — Jenbuchsen

Solution: Hi Jenbuchsen. We haven’t heard of any bug that results to a situation like this so it may be an isolated case. To try to fix the problem, the first thing that you want to do is to delete the Gallery app’s cache and data. This procedure will delete any photos and videos stored in this app so make sure that you create a backup of your important files before doing it.

  1. Open the Settings menu either through your notification shade (drop-down) or through the Settings app in your app drawer.
  2. Navigate down to “Apps”. This may be renamed to something like Applications or Application Manager in OEM skinned versions of Android 6.0.
  3. Once in there, click on an application.
  4. You’ll now see a list of stuff that gives you information about the app, including Storage, Permissions, Memory Use, and more. These are all clickable items. You’ll want to click on Storage.
  5. You should now clearly see the Clear Data and Clear Cache buttons for the application.

Once you’ve deleted the cache and data of the Gallery, try to access the SD card again. If the problem remains it may be an issue with the SD card itself so you must reformat it to see how it works afterwards. Alternatively, you can try to insert a different SD card and see if you can replicate the issue on it. If the same problem occurs when using a different card, consider wiping the phone via factory reset.

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Problem #4: Galaxy S7 screen showing pixelated part

My device screen all of a sudden has pixels on the screen that are blue, green and pink in a cluster like a smudge but only there was no dropping of my phone or anything. I was wondering what would be a cause of this? I woke for work and noticed it in the morning but only once I was on the lock screen with black background. i noticed it stand out like a sore thumb. on back ground it was ok. anyone ever come of this? there is no cracking or anything. I even used a magnifying glass to see and nothing just pixels stuck never changing colours but staying the colours they are. — Kev

Solution: Hi Kev. Some themes or wallpapers may sometimes give the appearance of a concentrated bright pixels in a portion of the screen. If you want to check if that’s the case, we suggest that you boot the phone to recovery or Odin mode. If the pixelated part resurface in these modes, that’s an indication that you have a bad screen and thus the phone has to be repaired or replaced. Below are the steps on how to boot the phone to recovery and/or Odin mode:

How to restart an S7 to Recovery mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. You can either wipe the cache partition or do a factory reset when in this mode.

How to restart an S7 to Download Mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  4. Wait until the Download screen appears.
  5. If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.
  6. Use Google to look for a guide on how to do it.

Remember, if the screen looks normal after booting the phone to any of these modes , simply change your phone’s wallpaper or theme.

Problem #5: Galaxy S7 edge slow in sending MMS after an update

I have a Galaxy S7 edge. When I first got it I loved it, and have loved it ever since. However, I don’t know if it’s because of the most recent system update or something but text messages can take forever to send sometimes, the keyboard lags horribly and sometimes freezes up for a few seconds, then the messaging app closes all together and says not responding. To top it off my best friend has the same phone, and the same problems with it as I do. We’ve literally started emailing each other pictures because the picture messaging is so horrible that it’s not even worth the frustration of dealing with it anymore. Pictures are constantly failing for no reason. They take forever to load when receiving a picture that finally made it through, and when they do go through they take forever to send. I never have had this problem before, and it’s upsetting and inconvenient enough to make me want to switch to an iPhone. Please get back to me as soon as possible. Thank you. — Kaitlyn

Solution: Hi Kaitlyn. If you and your friend’s S7 phones are on the same network and downloaded the system update around the same time, it’s possible that the trouble is being caused by a glitchy firmware from your carrier. This means that there’s nothing much that you can do except to let your carrier know about the problem and hope that they can release a patch to fix it soon.

On the other hand, if your friend is on a different network but the problem started about the same time as yours, it may just be a coincidence. You need to troubleshoot your phone to find out the real cause.

Wipe the cache partition

For starters, you want to begin with wiping the cache partition. This will ensure that your phone’s system cache is in good order as installation of updates and app can sometimes mess it up. A corrupted system cache can, in turn, result to problems. To wipe the cache partition, kindly do the following steps:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Install app and system updates

After wiping the cache partition, it will take some time for the system to build a new system cache. You don’t have to worry though as it won’t affect the general performance of the device as everything happens under the hood.

To help minimize bugs in the system from here on onwards, it’s your responsibility to ensure that ALL apps are updated and compatible with the operating system. Go over the list of your apps and see if there’s something that you haven’t used in the last two weeks. Such apps may not be that important to you so consider removing them from the system. If you are fond of installing apps without checking whether they’re from a reputable developer, check everything again and make sure that you only install those that are from a good source.

Finally, you want to make sure that only compatible apps are running in the system. We are assuming of course that you only download from the Play Store so head over there and check each installation page of your apps to see if they are compatible with the operating system version. Developers often indicate details whether or not their product is compatible or incompatible with a particular Android version. If you are not sure, contact the developer and get direct information.

Delete app cache and data

Another good troubleshooting step that you can do in this case is to delete the cache and data of apps you’ve having trouble with such as the messaging app and keyboard. Below are the steps on how to do this procedure:

  1. Open the Settings menu either through your notification shade (drop-down) or through the Settings app in your app drawer.
  2. Navigate down to “Apps”. This may be renamed to something like Applications or Application Manager in OEM skinned versions of Android 6.0.
  3. Once in there, click on an application.
  4. You’ll now see a list of stuff that gives you information about the app, including Storage, Permissions, Memory Use, and more. These are all clickable items. You’ll want to click on Storage.
  5. You should now clearly see the Clear Data and Clear Cache buttons for the application.

Wipe the phone by doing a factory reset

Any of the above procedures should help you fix the problem but if nothing changes, do a factory reset and see if there’s a difference. Factory reset will wipe your phone’s internal storage device so make sure that you create a backup before doing it.

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings and then touch Backup and reset.
  3. Tap Factory data reset and touch Reset device.
  4. If you have screen lock feature turned on, enter your password or PIN.
  5. Touch Continue.
  6. Tap Delete all to confirm your action.

Problem #6: Galaxy S7 not receiving copies of emails

I managed to get my email accounts set up on my phone and emails have been coming through (a little slower than my other device though so I have opened them on my other device instead of my phone). 12+ hours have passed and the emails have still not come up in my email app on my Samsung Galaxy s7. Is this because I opened them in a different device? Surely they would still come up on my phone but possibly show as already read rather than new email. That’s what they used to do on my S6. Hope this all makes sense Thanks. — Gemma

Solution: Hi Gemma. The result that you’re hoping for depends on how you set your email account up on both devices. During an email account set up, you will be asked to choose whether to use POP3 or IMAP when downloading your messages. The former allows you to download a message to only one device after leaving the server and nowhere else. In some modified POP3 configuration, a user may be able to leave a copy of the message in the email service provider’s server but this option must be set manually and must be supported by the provider as well. By default though, choosing POP means storing only a message to one single device so if you configure your email account to, say, two smartphones, only one of them will be able to store the message. IMAP, on the other hand, allows multiple devices to keep copies of the message and every device can download the same message and keep it there. If you can’t remember which option you choose when setting up your email, simply delete the account from your devices and reconfigure them in IMAP.

Problem #7: Galaxy S7 won’t allow access to camera, memory unsupported error, won’t take PIN

My phone froze during a flight a few times and then wouldn’t turn on even though battery was at 60%. When it did come on it won’t let me access the camera and says memory card unsupported and wants me to format it. Is this anything to do with being on a plane or flight mode or the recent update?

My daughter dropped it down the side of the plane chair about 2 hours before but it is in a really protective case and there’s not a mark on it. I can still see the previous photos in the gallery. I’ve had the phone 18 months and camera has always worked perfectly until now when I am on holiday 🙁

I have found that I have needed to enter my code about 4 times before it turns on since the last update 2-3 weeks ago. Here’s hoping you can work miracles! —  Eileen

Solution: Hi Eileen. The solution to the problem obviously depends on what really is happening on the phone right now. If this issue never occurred before, it’s possible that the accidental drop may have led to a hardware problem causing the phone to malfunction. The issues you mention here (camera, SD card, PIN) are unrelated so this may not be a software-related problem. To find out if that’s the case, we recommend that you try the software procedures above such as wiping the cache partition and factory reset. Factory reset will return all software settings back to their defaults and eliminates software bugs. If nothing changes and the issues you mention here remain after you do the reset, you can bet hardware is to blame. In this case, your options are to either have the phone repaired or replaced.

Problem #8: Galaxy S7 getting error when trying to install TWRP

Ok with Marshmallow phone was having serious trouble rebooting so I made backup and rooted with TWRP running Linage ROM. Then decided to go back to stock using Odin. I wiped phone clean, no issue at all! Used Odin many times to install Marshmallow and Nougat and even tried Lineage again but it just keeps going to Samsung logo and keeps trying to reboot but won’t. Odin shows pass Everytime and only errors with TWRP. I have reformatted with TWRP as well with no success. Always have errors when trying to install with TWRP now. Am I missing something with Odin or TWRP? Is it a hardware issue? SM-G930W8. — Darcy

Solution: Hi Darcy. It’s hard to determine the cause of a problem like this so it’s for you to find out. There are so many things that can go wrong while flashing, especially if you are fond of tweaking options in Odin. We say you try to factory reset the phone via recovery mode and start from there. Once you’ve done that, do a by-the-book flashing of stock firmware and bootloader and see how it goes. If the phone continues to get stuck in a boot loop, or won’t load the operating system normally, consider getting a new device.

If you are getting a TWRP-specific error, contact the developer of the software to see if there’s something that they can do to help.

 


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Galaxy Note 4 won’t install system update, has “unsupported SD card” error, other issues

Here’s another collection of #GalaxyNote4 issues and solutions for you. In this article, we give you 7 more reported issues and the things that Android users can do about them. We hope that the solutions we bring here today can help not only the users mentioned but also others that may have similar experiences. If you want to check other Note 4 issues, please visit our main Note 4 troubleshooting page.

Below are the specific topics that we cover for you today:

  1. Galaxy Note 4 not booting up | Galaxy Note 4 won’t charge
  2. Galaxy Note 4 keeps showing “Don’t turn off the target” screen | Galaxy Note 4 stuck in Download mode | Galaxy Note 4 won’t boot normally
  3. Galaxy Note 4 won’t install system update
  4. Galaxy Note 4 keeps rebooting by itself
  5. Galaxy Note 5 Snapchat app takes black pictures when using front camera
  6. Galaxy Note 4 has “unsupported SD card” error
  7. Galaxy Note 4 screen flickers during reboot

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page, or you can install our free app from Google Play Store.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.


Problem #1: Galaxy Note 4 not booting up | Galaxy Note 4 won’t charge

I have tried all of you spoke of. I have taken the battery or for a long period of time. I have held the power button for 30 seconds while the battery was out. I have held down all the buttons; home, up volume, and power. The held down Down Volume and power. The only thing that comes up is the Galaxy Note 4 picture then it just goes out. Never makes it to the Samsung loading screen. When I try and charge the phone the symbol of the battery comes up…the gray battery with a lightning bolt, but then goes out. Doesn’t make it to the actual charging symbol…the one where the percentage is shown and the battery is green. I have kept it on the charger all night even though no LED light or anything shows up. Nothing. I am out of ideas. I am also not sure of the Android version down at the bottom so I just picked one. I really hope you can help me. I haven’t even had this phone a year. — Angelica

Solution: Hi Angelica. Boot up problems like the one you’re experiencing may or may not be fixed by doing standard software troubleshooting. The outcome obviously depends on the cause, which can either be software or hardware. In most cases, software-caused boot up problems can be fixed relatively easily. If your phone remained unresponsive after attempting different boot modes, the only other potential solution, flashing stock firmware, is out of the question.

In order to manually install or flash official Samsung firmware, you must first ensure that you can restart the phone to Odin or Download mode. If your phone does not even respond to anything, there’s no way you can do a software solution at your level.

The main reason why the phone is not booting up must be bad hardware, which can range from a damaged button, bad battery, to a some unknown motherboard trouble. The only other thing that you can try in this case is to see if a new battery will make any difference. Try getting a new Samsung battery and use it. If that won’t improve the situation at all, send the phone to Samsung service center, or better still, have it replaced.

Problem #2: Galaxy Note 4 keeps showing “Don’t turn off the target” screen | Galaxy Note 4 stuck in Download mode | Galaxy Note 4 won’t boot normally

Hello. My name in Sindhu. I have a Samsung Note 4. It’s been 2 years since I bought it. Recently in December my phone started to download automatically with an Android symbol and saying Don’t turn off the target. Since it is taking too long, I, most of times, removed the battery when download is in progress. And later when I turn on the mobile, it used to work normally but only few minutes. Now my phone is switched off and how much ever I try it’s not turning on. The battery is fine. I can feel the tingling when I put it on my touch. I tried holding Volume Up along with Home and Power button. It didn’t work. I also pressed the power button for a minute without the battery and after 10 minutes kept it for charging for 20 minutes, it dint get switched on at all. Please tell me why is this happening. What it could be and what to do now. I feel so happy for coming across this site. — Sindhu

Solution: Hi Sindhu. Your problem may be similar to Angelica above so kindly refer to our suggestions for her. Since you did not indicate that you have tried flashing stock firmware, you can also try to boot your phone to Odin mode so you can manually install stock firmware. Here’s how to do that:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  4. Wait until the Download screen appears.
  5. If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.

The important thing to remember when flashing is to always use the right firmware. Make sure that you use the correct firmware for your phone’s model. You may accidentally brick your phone if you’ll use a Verizon firmware on an AT&T Note 4. Try to do some research on how to do the process before actually doing it.

If the phone remains unresponsive and won’t even allow you to boot to Odin mode, consider repair or replacement.

Problem #3: Galaxy Note 4 won’t install system update

Hi. My Note 4 keeps asking for software update. I pressed the update button and it did download half way then turned off automatically then never turned on again. Then after few weeks i try to turn it on and it did turn on. Everything was normal so i thought i should update the software and press the software update button. I noticed it downloading software as normal for about 15 minutes to half then suddenly it went off. Now, it doesn’t  even turn on again, completely dead now. Tried with brand new battery, still no success. Even tried with pressing power button, volume up and home button still no success, before when it was on it was ok but soon as i try to update software, it cause problem but after trying many times manage to turn on but this time it is not turning on at all. Any solution please kindly help me to turn back it on. Handset like brand new only a year old. Thanks. — Arworld1

Solution: Hi Arworld1. There can be a number of reasons why a phone won’t install a system update. These reasons can include the following:

  1. lack of storage space
  2. corrupted system cache
  3. critical system apps missing or disabled such as Google Services Framework (or other carrier and Samsung apps)
  4. server error (on carrier/Samsung side)

Any of these items may be responsible for the initial problem but since there’s no way to check them now as the phone no longer boots up, your main task is to try to see if you can turn the phone back on first. Please refer to our suggestions for Angelica and Sindhu above.

If you’re lucky and you’ll be able to power the phone back on, makes sure to factory reset the phone before attempting another system update. For reference, below are the steps on how to factory/master reset your phone:

  1. Turn off the Galaxy Note 4 completely.
  2. Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  3. When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  4. When the Android System Recovery shows on the screen, release the Volume Up key.
  5. Using the Volume Down key, highlight ‘wipe data / factory reset’ and press the Power key to select it.
  6. Now highlight ‘Yes — delete all user data’ using the Volume Down key and press the Power key to begin the reset.
  7. When the master reset is complete, highlight ‘Reboot system now’ and hit the Power key.
  8. The Note 4 will restart but it will be longer than usual. When it reaches the Home screen, then begin your setup.

Problem #4: Galaxy Note 4 keeps rebooting by itself

Hi TDG. I just got a Note 4 from a distant relative, who hasn’t used it in over a year. When i first booted it up, the phone was running slow and turns off whenever i lock it. I had to take the battery out to start the phone again. I updated it from 5.1.1 to 6.0.1 Marshmallow and the issue has since been solved. However after updating it to 6.0.1 the phone tends to freeze and reboot for no reason. It can freeze while I am using an app, sometimes rebooting the phone. Other times it just freezes and goes to the lock screen. Otherwise it just freezes for several seconds before going back to normal, but the phone will freeze more frequently and result in a reboot. There is no pattern or any clear cause. It happens even after factory reset, wiping cache partition and even in safe mode. Removing SIM card and SD card does not help either. The phone does this 3 or 4 times a day.

Also, the battery seems to drain relatively quickly, 1% per few minutes with light internet browsing or even meddling with the phone settings. It charges very fast after installing a program called wakelock and setting it to partial wakelock, it hasn’t randomly rebooted or froze since. Relying on a single app to make my phone usable isn’t very satisfactory of a fix. I was wondering if this was a software issue or hardware issue as the phone had issues before updating as well. Could it be a battery issue too? I don’t want to buy a new battery and end up not solving the issue. Many thanks and I hope to hear from you guys soon. — Vincent

Solution: Hi Vincent. If the phone was left unused for a year, the battery may have lost significant capacity to hold a charge, causing the phone to regularly shut down on its own. A lithium-ion battery must have more 50% battery level before leaving it unused for a long time because it constantly loses power. Once it reaches a point where there’s no more power while still in storage, chemistry can cause the battery to become incapable of holding a charge for long again. Try getting a new battery to see the difference. To be honest, there’s no way for us to know what the real problem is given how scant details about the system are.

That you need an app to keep the phone from draining battery power (with the help of Wake Lock app) shows 2 things:

  1. that the battery itself cannot hold enough power long enough to let you use the phone for hours at a stretch, and
  2. that apps on the phone may be causing an abnormally fast battery drain issue.

If you don’t want to buy a new battery right away, try doing another round of factory reset and observe the phone for a few days when no apps are installed. The only thing that you want to install are system updates and updates for pre-installed apps. If the phone continues to reboot on its own during the observation period, that’s a clear indicator that bad battery is to blame.

Problem #5: Galaxy Note 5 Snapchat app takes black pictures when using front camera

The app Snapchat, when I take a front facing picture is saving to my memories as a black screen. You can write on it and that shows but not the picture itself. However, if I take a pic with the rear facing camera it saves to my memories no problem. I have restarted my phone, i have uninstalled and reinstalled the app.. nothing is working. What do you think is causing this? Now, it was working fine until the other day when Snapchat had an update. I can assume it’s from that but none of my friends are having that issue. thanks for your time. — Rachel

Solution: Hi Rachel. If you think the problem started after an update, there are two things that you can try — wipe the cache partition and factory reset. To wipe the phone’s cache partition, follow these steps:

  1. Turn off the Galaxy Note 4 completely.
  2. Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  3. When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  4. When the Android System Recovery shows on the screen, release the Volume Up key.
  5. Using the Volume Down key, highlight the option ‘wipe cache partition’ and press the Power key to select it.
  6. When the wiping of the cache partition is finished, highlight ‘Reboot system now’ and hit the power key.

For steps on how to factory reset your device, follow the steps above.

If the problem remains after you do these two processes, this may be an app-specific issue, which means that only Snapchat developers can help you fix it. Make sure to contact them for direct assistance, or visit their support page.

Problem #6: Galaxy Note 4 has “unsupported SD card” error

I have a Galaxy Note 4 and am having problems with the SD card. It specifically says “Unsupported SD card.” I have tried to reformat the card. I have also removed the card and battery, held the power button for 1 minute then reinstall the card and battery. All to no avail. Any help would be greatly appreciated. I am frustrated and the local Verizon store is of no help. I am leery about doing a factory reset as a fear of losing all my data. The phone is set to automatically backup. What else can I do to be sure my phone is backed up and when reset will re-install everything? — Mark

Solution: Hi Mark. The error message being displayed by your phone can also be an indication that the device is unable to read ANY SD card so you must check if that’s the case. There are two ways in order to check if that is what is happening.  The first one involves inserting the current SD card to another Note 4 or any Android device, while the second way, which is what we prefer that you do, is to use another SD and insert it in your Note 4. either way should confirm whether or not your Note 4’s SD card reading ability is fine.

If the SD card won’t work in another device, that means that your Note 4 is fine. Simply use another SD card and you should be okay.

On the other hand, if you think that the Note 4 is the problem, that’s the time that you want to do a factory reset. Should the Note 4 fails to read any SD card after a factory reset, a hardware issue may be causing the trouble.

Problem #7: Galaxy Note 4 screen flickers during reboot

Hello. There is a certain problem with my tablet which started to appear from time to time and now it is permanently.

I used to use my device with about 30% of brightness and it was perfect for every day use with quality picture which Amoled display deliver.

Some day after switching SIM cards and restarting my tablet it did not start as usually but differently. Display stayed dark but after touching home button or power button it showed login screen but kind of reddish, restarting helped and all went to normal. Unfortunately restarting does not help any longer.

Normally startup looks like this:

After pressing power button appears bright white “Galaxy Note” on deep black background. After few seconds brightness goes little down and after couple of seconds starts “SAMSUNG” animated logo and after that tablet goes to login screen.

Now startup looks like this: after power button is pressed the bright white “Galaxy Note” on deep black background appears as usual but after few second it only shortly blinks with lower brightness and continue with the same high brightness as at beginning. (At this moment I know it will not start normally and there will be problem with display), then screen goes dark, there is no animation, tablet start up but screen stays dark. When power or home button is pressed then login screen appears but contrast and saturation are messed up. Beside that tablet is functioning normal.

When brightness is changed to higher level about 50% or more picture looks quite normal, but I used to use it at about 30% and it was perfect. Now if brightness is less than 50% you can see that there is something wrong.

I tried display adjusting apps, have reset tablet to factory settings, reinstalled whole android OS. None of these operations have helped. Tried also disconnect battery and display and reconnect them.

I wonder if you have met such problem and if you will be able to help me with some useful clues.

If there is software problem then why reinstalling the Android does not help?

If there is hardware problem then why system starts with this strange way? (described above)

I attempted also to try with IKernel but it always said that it requires root so I quit.

Please let me if you are able to help with above mentioned problem. Kind regards. — Boguslaw

Solution: Hi Boguslaw. Your issue is a documented problem for years now and it happens on all sorts of Android device. If you do a quick search about this problem, Google will tell you that a lot of Android forums and help sites encountered this issue as well. There seems to be no particular pattern that we can use to nail the cause of the issue so frankly speaking, this is still an open issue that still awaits resolution. We’ve already contacted Samsung about this issue before but we are yet to hear from them.

Some users in third party forums have reported that flickering issue only happens when screen brightness is set to low and battery level is low. Try to see if that’s true in your case by comparing how the screen behaves if you restart the phone in varying battery levels. If you can confirm that this solution works, please let us know so we can publish it as a confirmed solution.

 


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