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Galaxy Note 4 keeps rebooting during charging, cannot connect to 4G LTE, other issues

Welcome Note 4 users! Here’s another list of Note 4 issues and solutions for this week. Don’t forget to visit our main Galaxy Note 4 troubleshooting page should you not find anything useful in this material.

For now, these are the items that we’ve covered for you:

  1. Galaxy Note 4 does not ring when there’s incoming calls | incoming calls ringtone not working
  2. Blocked numbers on Galaxy Note 4 can continue to leave voice-to-text messages
  3. Galaxy Note 4 lost 4G connection | Cannot connect to 4G LTE
  4. Galaxy Note 4 won’t charge and shuts down on its own when battery level is at 25%
  5. Home and Recent apps buttons stops working after using the phone for a few minutes
  6. Galaxy Note 4 keeps rebooting during charging

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 does not ring when there’s incoming calls

I have only had my phone less than 2 months. I got the Note 4 because I wanted one with a replaceable battery and memory card. Suddenly yesterday, I noticed my phone does not ring on incoming calls. I have tested this from several phones in different areas. If I’m not looking at the screen, I will miss the call, because it doesn’t even vibrate. It was working just fine the day before and I didn’t add any new apps in that period. I have wiped cache (with T-Mobile assist on the phone with me) rebooted, taken battery out, everything short of a master reboot. I want to avoid that if at all possible because I’m not sure that will even work and I have to redo everything. In settings, if I go to Sounds>Ringtones, none of them play. I have system sounds, game sounds, video sound, music- everything but incoming ringtone. I can hear and be heard fine on calls. Can you help? PLEASE?? Thanks. — Olivia

Solution: Hi Olivia. If you’re positive that you did not change or install anything before this problem occurred, an update from one of your apps may be to blame. Though you didn’t install any new app, one of your third party apps may have automatically updated, especially if you set Google Play Store to do so. To check if our hunch is correct, you want to restart your phone to safe mode. Here’s how to do it:

  1. Turn off the phone completely.
  2. Press and hold the Power key and the Volume Down key.
  3. When the phone starts to boot, release the Power key but continue holding the Volume Down key until the phone finished restarting.
  4. Safe mode will be display at the lower left corner; you may release the Volume Down key now.

Bear in mind that safe mode won’t help you pinpoint the particular problematic app. It’s main function is to prevent all third party apps and services from running. This means that if your problem won’t happen while safe mode is enabled, it’s a confirmation that one of the apps is causing the trouble. In that case, you want to identify it by uninstalling apps one by one, making sure you observe how the phone works after every uninstall.

Remember, if nothing changes and your issue continues even when you’ve booted to safe mode, your next move is factory reset.

Problem #2: Blocked numbers on Galaxy Note 4 can continue to leave voice-to-text messages

I have an issue with trying to block certain numbers on my Galaxy Note 4. I can block and then mark the phone number as spam, however a blocked caller is still able to leave a 10-second Voice-To-Text message. This service is provided free of charge by my carrier and as far as I am aware cannot be turned off. This service is quite handy when I am unavailable to take a call. My issue is that as the blocked caller (nuisance) is still able to send Voice-To-Text messages even when blocked. I assume the caller thinks I am reading their VTT messages. I would prefer that a blocked nuisance caller were unable to leave messages at all. The calls are not actually blocked. As I see it the only way to block a nuisance phone number with my carrier is to change my phone number. — Mr. Smith

Solution: Hi Mr. Smith. This is an issue that no third party troubleshooter can help you with. You must talk to your carrier about it so they can give other options on how to avoid blocked contacts.

Problem #3: Galaxy Note 4 lost 4G connection | Cannot connect to 4G LTE

Galaxy Note 4 duo with 2 SIM cards, both active on unlimited data T-Mobile. I bought it new from China about 9 months ago and it was working fine until about 2 months ago. Here are the problems: First, the LTE/4G are not displayed at the top of the screen and I am completely unable to surf web, download anything, and Google maps is offline.

Also (and not sure if related), around the same time I started having problems with all the media on the phone having silent playback and a red media volume bar. This is true for already downloaded books from Audible, downloaded videos and podcasts, and music that’s already on my phone. Connected to a wireless network, all is completely normal/all problems resolve completely. Other volume/sounds such as phone calls, not affected. These are troubleshooting steps I’ve already taken: 1) checked to make sure mobile data is on, verified correct APN settings, and called T-Mobile to make sure everything on their end is normal (it is- they took me through a number of troubleshooting steps). 2) checked in safe mode…problem persists. 3) soft and hard resets of phone…problem persists. Would you advise about other troubleshooting steps I can take to diagnose the problem (s)? Thank you so much! Best. — Lil

Solution: Hi Lil. Like any other Android issue, yours can be due to either a software glitch or a hardware malfunction. To address possible software causes, we recommend the following:

  1. wiping the cache partition
  2. observing the phone in safe mode
  3. re-entering of correct APN settings
  4. installing all app and system updates
  5. factory reset

Any of these four items should have fixed the problems you’re describing here if the cause is software in nature. This means that the reason for your problem can only be bad hardware. The thing is, there’s no direct way for an average user to test possible components that are failing. There’s a chance that the network chip may not be working properly. To address the problem, we suggest that you replace the phone.

Problem #4: Galaxy Note 4 won’t charge and shuts down on its own when battery level is at 25%

I’m not entirely sure which version of Android I’m on, KitKat, Lollipop or Marshmallow. I’ve had so many issues with my phone not being able to update that I’ve lost track.

My current issue is that my phone was in the charger and all of a sudden said it was downloading. it gets to 25% and then just shuts off and is unresponsive. i take out the battery several times and when it finally responds to the power button it either goes back to the same cycle of downloading to 25% and shutting off or i get the following screen: in the top right corner: Could not do normal boot. ddi :mmc_read failed ODIN MODE (HIGH SPEED) PRODUCT NAME: SM-N910T CURRENT BINARY: Samsung Official SYSTEM STATUS: Custom REACTIVATION LOCK: OFF KNOX WARRANTY VOID: 0X0 QUALCOM SECUREBOOT: ENABLE (CSB) RP SWREV: S1, T1, A1, A2, P1 SECURE DOWNLOAD : ENABLE UDC START in the center of the screen is the green android guy and under that it says: DOWNLOADING… DO NOT TURN OFF TARGET!! i have tried all of the troubleshooting methods talked about on this site and I’m wondering where i should go from here? — Kaitlyn

Solution: Hi Kaitlyn. If you’ve tried all the troubleshooting steps we normally suggest in our blog, we don’t expect you to ask what to do next, unless you haven’t the submitted the phone for repair yet. After you’ve exhausted all software troubleshooting, you’re supposed to either replace the battery or find a way to have the phone repaired or replaced. An issue like this is not caused by software alone. A lot of times, users end up with repair or replacement, especially if the phone has been around (at least 2 years), been dropped, or exposed to liquid. Like any other computing devices today, a smartphone can degrade fast depending on how you take care of it. For some, one accidental drop can permanently brick their device while others can do it several times.

Before you consider sending the phone to a technician, Samsung, or store, make sure that you also try to recalibrate the battery. There are times that an operating system simply lost its ability to keep track of the actual battery level, resulting to random shut down. In this case, you want to train the OS again on how to detect battery level correctly. It’s a simple process so we highly recommend that you do it:

  1. Use the phone by playing games or doing tasks to hasten power discharge, until the phone turns itself off.
  2. Turn the phone on again and let it turn itself off.
  3. Charge the phone without turning it back on.
  4. Wait until the battery says it fully charged to 100%
  5. Unplug the charger and turn the phone on.
  6. If the phone says it’s not 100% anymore, turn it off, plug the charger back in and wait until 100% charge is reached.
  7. Unplug the charger the turn the phone on again.
  8. Use the phone until you drain the battery down to 0.
  9. Repeat the cycle once.

Problem #5: Home and Recent apps buttons stops working after using the phone for a few minutes

Home button and left touch button stops responding after some minutes of using, back touch button works everytime. I restart the phone and it starts working again until some minutes pass, i have to restart everytime to resolve the problem for just some minutes. Phone has android 6.0.1 latest update, it was bought recently on ebay and it came like brand new factory erased, first 3 weeks no problems were shown until now. It’s very frustrating to keep restarting every half hour or so. Please help!!! Btw, phone was gsm unlocked on the first week, now running claropr from Puerto Rico. i think is similar to T-Mobile. Thanks! — Edwin

Solution: Hi Edwin. The first thing that you want to do in this case is to wipe the cache partition. This will tell the device to delete the old system cache and make way for a new one. Your aim here is to ensure that the system cache is fresh as it can cause all sorts of issues when it is otherwise. Here’s how it’s done:

  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 Vol 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.

Once you’ve wiped the system cache, restart the phone and check if the issue remains. If it does, a good next move is to observe if the problem will persist while the device is in safe mode. Here’s how it’s done:

  1. Turn off the phone completely.
  2. Press and hold the Power key and the Volume Down key.
  3. When the phone starts to boot, release the Power key but continue holding the Volume Down key until the phone finished restarting.
  4. Safe mode will be display at the lower left corner; you may release the Volume Down key now.

Should nothing change, the ultimate software troubleshooting that you can do on your level is factory reset. With this process, you are basically reverting all software settings back to their known working state. You are also removing apps that you’ve installed after unboxing the device, leaving only pre-installed ones. Factory reset, thus, transforms the entire software environment to its default state, free of customizations and bugs that developed later. It is therefore imperative that you observe how the problematic buttons behave after performing a factory reset right away. Make sure that you don’t install anything during this time. If the problem was caused by an unknown software bug, the buttons should work normally. If they don’t bad hardware may be to blame.

To factory reset your Note 4, 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 Vol 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 Vol 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.

In the event that your Note 4 is rooted or running custom firmware, you can also try to unroot and flash a stock ROM to it first. This will perform a similar function to a factory reset, with the added advantage of ensuring that the device only uses official software. Unrooting and flashing methods vary so try to do some little research on how it’s done on your particular phone model.

Should factory reset and/or flashing won’t help at all, the last ultimate test that you can do on your end is to check if the two buttons are defective. To do that, follow these steps below:

  1. Load the Phone app.
  2. Dial “*#0*#” (without the quotes).
  3. Tap Sub key box.
  4. Tap the problematic buttons and see if the screen will react (by changing to a different color). If the buttons work intermittently even in this state, that’s a sign that it’s defective. You must find a way to have the phone repaired or replaced.

Problem #6: Galaxy Note 4 keeps rebooting during charging

Hey DroidGuy. I love Galaxy Notes. I had the Note 1, 2, and 3. Now i have the Note 4. This morning i notice when charging it that sometimes the battery percentage would freeze. So i would have to unplug it & plug it back to the charger for the correct battery percentage to register. Later on today, when my phone needs to be recharged again, i noticed that sometimes it reboots while charging this time. Now when it’s not charging and with light usage of texting, Facebooking, and using other apps it will sometimes freeze & reboot. Sometimes while typing, it will freeze & reboot. I tried soft reset, wiping cache, removing SD card, removing battery for 10 seconds, etc., and I’m still having the same problem. I was looking on Youtube and someone else seem to have the similar problem. He fixed it by getting a new battery because he noticed his battery usage status had a few gaps indicating 0%. i was wondering if that was my issue too. ( i just recently updated to Marshmallow by the way). Please help! I attached a screen shot of my battery status. — Princess Lavonnah

Solution: Hi Princess Lavonnah. As mentioned earlier, almost all Android issues can be caused by either a software problem or a bad hardware. In order to get to the bottom of the issue, you must do a number of logical troubleshooting steps. Below are some of the things that you must do, taking into consideration that you’ve already tried some of them before contacting us:

  1. wipe the cache partition (refer to the steps above)
  2. observe the phone in safe mode (refer to the steps above)
  3. recalibrate the battery (refer to the steps above)
  4. use another USB cable and charger
  5. remove the battery and wait for 30 seconds
  6. reseat the SD card
  7. perform a factory reset

If all these seven steps have been tried but the issue remains, that the time that you must try another battery. Lithium-ion batteries like the one in your Note 4 degrades over time, meaning it loses capacity to hold a charge as it ages. The rate of capacity loss can be hastened by poor maintenance or mishandling so even if your Note 4 is only under a year old, there’s still a chance that the battery may no longer be performing properly. Once you have the new battery installed, make sure to calibrate it properly by following the steps above.

 


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