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Samsung Galaxy S2 Problems, Errors, Glitches, Fixes and Solutions [Part 32]

Galaxy S2

Dear readers, welcome to the 32nd part of our Samsung Galaxy S2 problems troubleshooter series (click here to go to the index). There are 12 issues that I addressed in this post and many of them are power-related issues. As we all know, batteries deteriorate faster than any other components. In fact, you are lucky if the battery can last a couple of years. So, if you own an S2 and it started to fail booting up or powering on, there’s a chance the battery needs replacement.

Troubleshooting procedures may vary depending on the situation. For us, they vary depending on how our readers describe their problems. That is why I need to remind you that when you contact us about a problem, make sure you include all necessary details so that we can accurately assess what the problem is. For example, if you’re getting an error message, include every word of that error in your message and send it to [email protected]. Since we write a couple of support articles for every device we support each week, there’s a chance your problem will be featured. And for those who want to be helped through social media, post your concerns on our Facebook wall and/or Google+ page. I’m one of the people who’ll accommodate you.

Now, for the problems I addressed in this post, click any of the link to jump to a specific issue:

  1. Galaxy S2 Drains Battery Even When Switched Off
  2. Galaxy S2 Says Unmount SD Card Before Removing
  3. Galaxy S2 Won’t Turn On But Vibrates
  4. Galaxy S2 Camera Issue, Flashes And Reboots
  5. Galaxy S2 Shuts Down When Idle
  6. Galaxy S2 Crashed With Multiple Errors
  7. Galaxy S2 Stuck In Recovery Mode
  8. Galaxy S2 Firmware Issue
  9. Galaxy S2 Won’t Turn On
  10. Galaxy S2 Won’t Boot Up Completely
  11. Galaxy S2 Lose Signal
  12. Galaxy S2 Partially Boots Up Then Shuts Down 
  13. Galaxy S2 Can’t Install Apps In The Default Location


Galaxy S2 Drains Battery Even When Switched Off

Problem: Hi Droid Guy. Please help. Each night I turn my phone off, but when I turn it on in the morning the battery shows way less than it was at the end of the day. If it’s 50% at the end of the day, by morning it’ll be 10% or less. But this only seems to happen if I leave Wi-Fi turned on (i.e. I forget to turn Wi-Fi off!). If I turn WiFi off before shutting down then it doesn’t lose charge.

So, it’s like the phone is still on and using Wi-Fi even when it’s turned off! What can I do? Thanks. — Dave

Troubleshooting: Hey Dave. If the battery drains even if the phone is off, then there may be some issues with the circuit. I only encountered this kind of issue a couple of times and both were caused by liquid, it created a short circuit that depletes–in worse cases it may even damage–the battery way quicker than normal. I suggest you pull the battery out and inspect it for physical deformities such as lumps and swelling. You may also clean the connectors with a dry cloth.

There’s also a chance that the issue is with service that is responsible in displaying the battery indicator. We don’t have access to such service so we need to perform a general troubleshooting procedure and that is to wipe the cache partition.

  1. Turn off the device.
  2. Press and hold both Volume Up and Volume Down keys at the same time.
  3. Press the Power key only until the phone vibrates once, then release only the Power key.
  4. Continue to hold the Volume up and Volume Down keys until the Android System Recovery screen appears.
  5. Press the Volume Down key to highlight wipe cache partition.
  6. Press the Power button to select.
  7. Highlight reboot system now and press the power button again to reboot.

Galaxy S2 Says Unmount SD Card Before Removing

Problem: Hello thedroidguy team, I have Samsung Galaxy S2, In the notification bar it shows that “unmount sd card before removing”. Phone also doesn’t show my files in SD card. From setting I want to unmount sd card as it says, but there’s not unmount option. Options are “mount sd card” & “insert sd card”. Also I can’t apply this options. In addition I have checked there’s no problem with my sd card.I think the problem is with my Galaxy. What can i do to fix this problem? Please help me. Thanks in advance. Best regards, Sevinc.

Solution: You said you checked the SD card and it’s fine and I assume you used a computer or another phone. My suggestion is you backup everything that’s in it so you can troubleshoot the problem without the risk of losing your important data. Once all your files are safe, reformat the microSD card using FAT32 format and mount (i.e. insert it and mount it via Settings) it to your phone to see if it can detect it.

If the problem persists, then try to boot the phone in safe mode and attempt to mount the SD card again. Should the phone fail to detect or read from the card, then there’s a big chance that your suspicion about your phone being the problem is right. However, there are a couple of things you need to try before sending the phone for repair and that is to perform factory reset (don’t forget to backup your data) and try to a different microSD card to confirm without a doubt that it really is the phone that has a problem.

Galaxy S2 Won’t Turn On But Vibrates

Problem: Hello, my s2 will not turn on at all unless I constantly press the power button and volume button at the same time and I can’t keep it on unless I do that. I wanted to recover some pictures on it so I could upgrade but this is an unending problem I’ve been having for weeks. Do you know how I can fix it? Please reply as soon as possible. Thank you. Sincerely, Rachael S.

P.S. it also keeps vibrating while it charges or while the battery is in it until it dies.

Solution: Rachael, what you’re experiencing is a stuck Power button. That is the reason why the phone won’t turn on and why it vibrates every after a few seconds. To address this, try pressing the Power button many times until it gets out from getting stuck. However, if it’s still stuck after that, there’s a possibility it’s damaged. If you are confident enough to open the phone yourself and inspect the Power button, then proceed at your own risk. But I suggest you seek the help of a technician to get this sorted out.

Galaxy S2 Camera Issue, Flashes And Reboots

Problems: Hey sup techy, I saw your articles on Samsung S2 and it gave me a kind of relief, you guys are doing a great job. The problem with my S2 is that when the camera doesn’t work at all , it says “camera unfortunately stops working” but when I Skype, the front camera works perfectly. I can’t access both the front and back camera from the camera app itself as the app crashes each time I try to take pictures. Please I don’t know what to do. Is it possible for me for me to change the back camera? ‘Cause I’ve tried installing another camera cleared cache and all stuffs but problem still persists.

Also, my phone reboots automatically and it does that a lot but what I noticed I that each time it reboots, its flashes the flash light and will reboot again. I’ve tried solving the problem by upgrading the android OS from 4.1.2 to 4.4.4 hoping it will correct all the problems but instead caused more as I can’t even hang up a call or receive a call. Please I really need your help cos i love the phone. I really wait for your response. Thanks a lot.

Suggestion: Just to answer your question if you can change the camera, the answer is yes. The back camera can easily be detached and replaced as it is mounted to the motherboard with a flex cable. However, you need to open the phone and detach the motherboard to be able to access it.

What made this problem complicated is the fact that you are now running a custom Android 4.4.4 ROM, which may still have some bugs. I suggest you flash the stock 4.1 firmware back. After than, reboot the phone in recovery mode, wipe the cache partition and perform master reset to reformat the data partition. If the problem still persists after that, then it is clear now that it’s a hardware issue. So proceed with replacing the back camera and/or the front camera.

Galaxy S2 Shuts Down When Idle

Problem: Hello, well done for the good works. So I got this Samsung Galaxy S2, the issue is that it goes off anytime its not in use but if its in use like when I am playing music it will stay on all through. Otherwise if i should leave it for a while and return back to operate it…it would have gone off….it becomes so hot sometimes too and I think the battery drains faster as well too. Thanks for your time. — Lawal

Troubleshooting: Lawal, we don’t know for sure what’s causing the problem and I’m not even sure if the phone really shuts down when in idle or just can’t quickly get out of deep sleep. The first thing I want you to do is turn off the phone’s power saving feature if it’s on: go to Settings > Power saving > uncheck both System power saving and Custom power saving modes. Now, reboot your phone.

After disabling all possible power saving features, observe the phone to know if the problem still occurs. If so, boot the phone in safe mode and observe it while in that state.

  1. Remove the battery from the phone.
  2. Re-insert the battery.
  3. Press and hold the Menu key.
  4. While holding the Menu key, turn on the device.
  5. When you see the lock screen, you can release the Menu key.
  6. ‘Safe mode’ displays in the lower-left corner.

If the problem still persists even in safe mode, then it could be a firmware issue. Try performing the factory reset to see if it makes a difference. But don’t forget to backup your data first before doing that. In case the factory reset won’t fix it, it’s time you had the phone checked by a technician.

Galaxy S2 Crashed With Multiple Errors

Problem: Hi droid guy, I was skyping with my phone just yesterday and it went off after some time when the phone became hot. I tried putting it back on but to no avail. All I see when I turn it on is “unfortunately exchange has stop”, “unfortunately email has stopped” if i press ok, another app failure pops up. I cant access the home screen. It also shows database error. Please any idea? Thanks. My phone is Galaxy S2. — Daniel

Troubleshooting: Android system just crashed without apparent reason? Yes, it happens more often. The thing about this issue is that it is almost impossible to know what caused the crashing. Of course, the app that you last used is among the suspects but there’s no guarantee.

Sometimes a reboot may be able to fix the problem but in Daniel’s case, it didn’t. Instead, error messages kept popping up. The reason for this is that, the service that is responsible in keeping app services running may have also crashed and created a conflict in the system.

To address this issue, boot the phone in safe mode to temporarily disable all third-party apps and close their services. If it were a third-party that crashed causing the system to also crash, then the phone can boot in safe mode without any issues. Doing this procedure will fix the problem, so the one you have to do now is restart the phone so it can boot normally.

However, if the phone couldn’t boot in safe mode or refuses to boot normally from safe mode, you need to wipe the cache partition as it is obvious some caches or even data have been corrupted due to unexpected crash.

  1. Turn off the device.
  2. Press and hold both Volume Up and Volume Down keys at the same time.
  3. Press the Power key only until the phone vibrates once, then release only the Power key.
  4. Continue to hold the Volume up and Volume Down keys until the Android System Recovery screen appears.
  5. Press the Volume Down key to highlight wipe cache partition.
  6. Press the Power button to select.
  7. Highlight reboot system now and press the power button again to reboot.

Galaxy S2 Stuck In Recovery Mode

Problem: Hey, my friend’s phone is stuck in what I believe is a reboot mode.. I’m not exactly sure if that’s the correct term. Anyways there are photos of his little girl who passed away on it & I wanted to know if there is anyway for me to recover these photos. I believe it is a Galaxy S2.

  • Model: SGH-I727R
  • IC: 649E-SGHI727
  • FCC ID: A3LSGHI727

I don’t know if that info will help at all. It is so important to just recover the photos though. I really hope you can help. Sincerely, Brittany.

Solution: Hi Brittany. Try to remove the battery, then press and hold the power key for a minute. After that, place the battery back in and attempt to turn the phone on to see if it can boot up normally. If it still boots up in recovery mode (yeah, I believe the phone is stuck in recovery mode), then make sure the Volume Up and Home keys aren’t stuck.

Now, try to boot the phone in safe mode. If it can, your friend can recover those photos. To boot the S2 in safe mode, follow these steps:

  1. Remove the battery from the phone.
  2. Re-insert the battery.
  3. Press and hold the Menu key.
  4. While holding the Menu key, turn on the device.
  5. When you see the lock screen, you can release the Menu key.
  6. ‘Safe mode’ displays in the lower-left corner.

If the phone can boot successfully in safe mode, there’s a chance it can boot back to normal mode. But then again, before you restart the phone, recover the photos that needed to be recovered. If the phone still gets into recovery mode, try wiping the cache partition first and then reboot again. If all else failed, perform master reset. You can do that while the phone is in recovery mode.

Galaxy S2 Firmware Issue

Problem: Hello. I have some major concerns regarding my phone.

First of all, I would like to mention that my phone was rooted using superuser. This was to enable the phone to be used in my country as it came from a different country.

And just today, when my phone’s battery got drained while I was out, I charged it once I arrived home only to find that something has drastically changed. The screen had a “click the android to start” thing, and it made me set up my google accounts. It wasn’t easy though, because I had to go through multiple attempts to leave that stage because there were always warnings popping up from the apps in my phone where I had to click “force close” in order to continue.

When I managed to get through that phase, I noticed that my phone wasn’t how it was prior to dying. All my contacts also disappeared, and now all my apps couldn’t be opened because my “software is no longer supported by the apps”.

I’m not sure what the software of my phone was prior to this happening, but now that I looked at it my software is now 2.3.5 GINGERBREAD.

I really want to know how to fix this because all my apps won’t work anymore and I can’t use my phone without a warning showing up every few seconds where I have to click “force close”. And what originally was “Google Play” suddenly became “Market”. Please help me. Thank you. — Patricia

Suggestion: I was hoping you’ll include the model number of your phone because that’s a very important information needed to search for appropriate custom ROMs that can be installed on your device. I’m also not sure what happened to your phone but it seems like a custom ROM that was installed on it disappeared when your phone powered down. What makes it more complicated is that we don’t know what kind of ROM or firmware your phone was running. But don’t worry, you can install any ROM on it but I suggest you install the one from CyanogenMod team.

The first thing you need to do is find the model number of your phone, then find a CyanogenMod for your device (follow this link). If you need help installing it, email us back with necessary details and guide you through it.

Galaxy S2 Won’t Turn On

Problem: Hey! Hope all is well on this fine Thursday morning. I had a woman bring her Galaxy S2 to me with a very bizarre problem that I have never encountered and hope that you can shed some light on it for me. She said that her screen went green one day and then the phone immediately crashed. Once she was able to get it to boot back up, all of her photos were deleted as well as some of her books on certain applications. Certain apps like camera and facebook crash instantly when launched, and there are a few force quit dialog boxes that pop up when ever the phone is turned off and turned back on.

Every once-in-a-while the phone completely shuts off on its own and cannot be turned back on using the power button, but must be turn on by plugging it into a charger and then turning on. I’m not entirely sure what to tell her as I have been searching high and low in all the forums. I have booted into recovery and cleared out the cache that way and still not change. Any advice would be appreciated. Thanks, Conrad.

Suggestion: Hey, Conrad. Ask her if the phone got wet or you can go ahead and find the LDI (Liquid Damage Indicator). Remove the battery and sticker beneath the connectors on the back of the device is the LDI. If it’s red or purple, then the phone suffered liquid damage. If the sticker is white, liquid isn’t the cause of the problem but there’s a chance the phone may have been hard-bricked. If you’re a technician yourself, find the hardware that’s causing it. Start with the USB charge port and so on.

Galaxy S2 Won’t Boot Up Completely

Problem: Hi, I have Samsung S2 phone and its one year old, all was well till the month of October but from then my phone goes off and if i try to switch it on it comes till Samsung logo and then again goes off after this then again i will have to repeat at least 6 to 7 times and then it will turn on only if i plug in the charger and switch it on kindly help I’m tired of it. Thanks & regards, Madhu.

Troubleshooting: Hey Madhu, it sounds like the battery has already given up. But before you go and buy a new one, try to troubleshoot it first. If the phone still powers on but can’t boot up completely, there’s a chance an app is causing the issue. I suggest you boot it in safe mode first just to find out if it can. If so, then make use of that opportunity to backup all you important data, then proceed with factory reset.

If, however, the phone can’t boot in safe mode, try booting it in recovery mode and wipe the cache partition. If that failed, too, it’s time you bought that new battery or borrow from someone who has the same phone as you and continue with your troubleshooting.

Galaxy S2 Lost Signal

Problem: Hi Droid guy. I have a Samsung Galaxy S2. 2 days ago it suddenly loses signal while I’m texting. I turn it to flight mode and turn it off again but the icon still shows on my top bar. Tried rebooting several times with no luck, still says ‘no service’. Please help I really don’t want to do a factory reset. Thanks. — Janine

Suggestion: Hey Janine. I understand why you don’t want to do factory reset. Your case may be just a network-related issue. If the phone can’t detect signal without apparent reason, it is more likely a network problem. So, before you do something on your phone, call your service provider first. Unless you can rule out the possibility that the issue is with your provider, don’t do any troubleshooting on your phone.

Galaxy S2 Partially Boots Up Then Shuts Down

Question: Hi! Can I have some help with this? I have gotten an online estimate of 80$ to fix it, but they are still unsure of what is wrong. I’d like to find what’s wrong before I get charged for consultation costs. Started with my phone just shutting off intermittently, and then progressed to not turning on again at all. I would remove the battery and it begins with the startup screen, but stops half way through the loading bar and shuts down again. Only to vibrate like it was starting up again every 5 seconds. It is possible that the power button is stuck in? But I have never dropped it and I have a heavy duty case too. — Jessica

Answer: There are two possibilities, Jessica. Either the Power button is just stuck or it’s totally damaged and needs replacement. One way to release the button from being stuck is to press it many times. To prevent firmware issues due to frequent turning on and off, remove the battery first. If the phone still won’t boot up completely after pressing the Power button countless times, then it’s time you had it checked by a technician.

Galaxy S2 Can’t Install Apps In The Default Location

Problem: Hi. I’m Hawila. I’m using S2 but having problem with application update. Whenever I update any application on my phone its say “Application cannot be installed in the default installation location”. What should I do about this? Hope you guys can help me out. Thanks!

Solution: Hello Hawila. I wish developers made it clearer for us what every error message means. In your case, the error just says the app or update cannot be installed in the default location but it didn’t give any clue why. That error message actual means there isn’t enough space left in your phone’s internal memory and since you cannot set the phone to automatically install apps to other location, you will have to move installed apps to the SD card especially those that occupy too much space like heavy games. To do so, follow these steps:

  1. From the Home screen, tap the Apps icon.
  2. Scroll to the right and touch Settings.
  3. Scroll down and tap Applications.
  4. Tap All tab.
  5. Now scroll to the app and tap on it.
  6. Tap the Move to SD Card button.

There’s no easier way to do this so you’ll have to go through this for every app…but it’s worth your time and effort.

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