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Galaxy Note 5 draining battery fast after an update, stuck in boot loop after using some themes, other issues

Hello everyone! Welcome to another #GalaxyNote5 post for this week! Like the Galaxy S7, we seem to be receiving more and more Note 5 issues of late so we’ve decided to publish more posts about this amazing device. If you can’t find anything useful in this material, don’t forget to also visit our main Galaxy Note 5 troubleshooting page.

Below are the specific topics we cover for you today:

  1. Galaxy Note 5 keeps vibrating on its own | Galaxy Note 5 Back button not working properly
  2. Galaxy Note 5 freezing issue after using some themes
  3. Galaxy Note 5 keeps freezing | Galaxy Note 5 battery level is erratic
  4. Galaxy Note 5 draining battery fast after an update | Galaxy Note 5 stops fast charging after installing Marshamallow
  5. Galaxy Note 5 microphone and speaker not working properly

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 5 keeps vibrating on its own | Galaxy Note 5 Back button not working properly

My issue has been ongoing for 2 days. I am not sure if it is an app or system issue. Presently my phone will just start vibrating, like the touch screen vibration, and whatever I am using, text, internet or any other app will back out like I’m hitting the back arrow. I am unable to text answer calls or shut off my phone when this happens because as soon as I bring up anything it immediately exits. I had installed a weather app the day before this started occurring however I have uninstalled it and it is still happening. I have done a soft reset, ran a diagnostic antivirus scan with ProTool Antivirus app and it came back as safe.

Solution: Hi Elizabeth. The first thing that you want to do is to wipe the phone’s cache partition, which holds the system cache. The cache partition holds temporary data that are used by the system to load apps quickly. Sometimes, installation of system update or apps can corrupt the system cache so youi want to ensure that it’s updated all the time. Here’s how to do it:

  • Turn off your Samsung Galaxy Note 5 completely.
  • Press and hold the Volume Up and the Home buttons first, and then press and hold the Power key.
  • Keep the three buttons pressed and when ‘Samsung Galaxy Note5’ shows, release the Power key but continue holding the other two.
  • Once the Android logo shows, release both the Volume Up and Home buttons.
  • The notice ‘Installing system update’ will show on the screen for 30 to 60 seconds before the Android system recovery screen is shown with its options.
  • Use the Volume Down key to highlight the option ‘wipe cache partition’ and press the Power key to select it.
  • When the process is complete, use the Volume Down key to highlight the option ‘Reboot system now’ and hit the Power key to restart the phone.
  • The reboot may take a little longer to complete but don’t worry and wait for the device to become active.

Some of the issues that are usually addressed by a cache partition wipe process includes battery drain issue, overheating, erratic app behaviors, and more. If nothing changes though after you do it, proceed to the next step, observing the phone in safe mode.

Safe mode is similar to safe mode or diagnostic mode in Windows. In Android environment, safe mode prevents third party apps from running so if you suspect that one of the installed app is to blame, doing this is highly recommended. Safe mode won’t pinpoint the exact app though so you must do an extra effort in tracking it down afterwards. Now remember, if the phone works normally and the issues won’t occur while safe mode is enabled, that’s a clear indicator that one of the third party apps is to blame. To restart your Note 5 to safe mode, follow these steps:

  • Turn off the phone completely.
  • Press and hold the Power key.
  • Once ‘Samsung Galaxy Note5’ shows, release the Power key and immediately press and hold the Volume Down button.
  • The phone will restart but keep the Volume Down button pressed.
  • Once the phone has finished restarting, ‘Safe mode’ will be displayed in the lower-left corner of the screen.
  • You may now release the Volume Down button.

Another good thing to do in this case is to see if the Back, Home, and Recent apps button are malfunctioning. To do that, you want to access the phone’s

service menu by doing the following:

  • Open the Phone app.
  • Dial “*#0*#” (without the quotes).
  • Tap Sub key box.
  • To know if any of the three buttons is working, simply tap each one. The screen should turn to different color depending on the button you press. If the screen remains black or won’t change color after tapping Recent apps, Home, or Back button, hardware issue must be to blame. If everything works out though, continue to the next troubleshooting, factory reset.

Factory reset

Finally, if nothing appears to work after doing all the procedures above, you must wipe the phone by doing a factory reset. Here’s how to do it:

  • Turn off your Samsung Galaxy Note 5 completely.
  • Press and hold the Volume Up and the Home buttons first, and then press and hold the Power key.
  • Keep the three buttons pressed and when ‘Samsung Galaxy Note5’ shows, release the Power key but continue holding the other two.
  • Once the Android logo shows, release both the Volume Up and Home buttons.
  • The notice ‘Installing system update’ will show on the screen for 30 to 60 seconds before the Android system recovery screen is shown with its options.
  • Use the Volume Down key to highlight the option ‘Yes — delete all user data’ and press the Power key to select it.
  • When the process is complete, use the Volume Down key to highlight the option ‘Reboot system now’ and hit the Power key to restart the phone.
  • The reboot may take a little longer to complete but don’t worry and wait for the device to become active.

All the steps above are meant to allow you to do applicable software solutions but if nothing works still, you must consider repair or replacement.

Problem #2: Galaxy Note 5 stuck in boot loop after using some themes

I have a Note 5 US Cellular version. It was working fine, but I was applying some of the themes located in the main settings screen. I started getting an error every 1 second saying that contacts stopped working. It was absolutely annoying, so I went with factory reset and decided to just start over. Unfortunately, I forgot that you had deleted the Nandroid backup I had previously made. After factory reset in TWRP, the phone will not boot back up. I can get to the Samsung Galaxy Note 5 screen, and when trying different ROMs, I can get passed the Aroma installer but still not passed the custom boot animation. I have flashed many ROMs in the past and I’ve screwed up several times as well, but usually installing stock firmware either through Odin or a custom recovery, I’m usually able to solve these issues. I am stumped with this device. — Jason

Solution: Hi Jason. You’re right, the effective only solution to fix flashing-related problems are factory reset and reinstallation of stock firmware. If both these procedures don’t work anymore, there may be something deeper that causes the bootloader not to work properly. The only alternate potential solution that we can think of is to use Samsung Smart Switch app to repair the software. If this tool won’t help either, consider having the phone replaced.

Problem #3: Galaxy Note 5 keeps freezing | Galaxy Note 5 battery level is erratic

Hello! I have a Note 5 that keeps freezing. It also turns itself off and keeps rebooting, usually doing this several times before it even it stays on. When I take pictures using the flash, it will sometimes turn off. The battery drains and will “jump” from charge percentage (examples: 85% to 43% then back up to 90% then again down drastically to like 20%). Do you think I have a virus? My virus protection is saying everything is okay.

I’m not really certain as to which Android version it is either because I can’t get the phone to stay on long enough to look. It is whatever was factory because I have not upgraded the software since I got the phone. — Michelle

Solution: Hi Michelle. At this point, everything is possible so let’s try to do a few troubleshooting steps to narrow down possible causes.

The first step that you must do is battery calibration. This will help retrain the operating system to detect the actual battery level. We are hoping, of course, that the battery is still okay and not defective. Battery calibration is highly recommended especially if you notice a problem with it after installing a system update or new firmware. There are apps that can help you calibrate the battery more easily but most of them require root. If you don’t want to root your phone, try the more traditional way to do it. Here are the steps:

  • Use the phone by playing games or doing tasks to hasten power discharge, until the phone turns itself off.
  • Turn the phone on again and let it turn itself off.
  • Charge the phone without turning it back on.
  • Wait until the battery says it fully charged to 100%
  • Unplug the charger and turn the phone on.
  • If the phone says it’s not 100% anymore, turn it off, plug the charger back in and wait until 100% charge is reached.
  • Unplug the charger the turn the phone on again.
  • Use the phone until you drain the battery down to 0.
  • Repeat the cycle once.
  • Observe the phone for at least 2 days to see if the issue remains.

Should the problem stay, you must do a quick factory reset. This will help you check if your problem is on the software level or not. This is also the only thing that you can do at this point before you submit the phone for repair or replacement. Here’s how to factory reset your Note 5:

  1. From the Home screen, tap the Apps icon.
  2. Find and tap the Settings icon.
  3. Under the ‘Personal’ section, find and tap Backup and reset.
  4. Tap Factory data reset.
  5. Touch Reset device to proceed with the reset.
  6. Depending on the security lock you used, enter the PIN or password.
  7. Tap Continue.
  8. Touch Delete all to confirm your action.

Problem #4: Galaxy Note 5 draining battery fast after an update | Galaxy Note 5 stops fast charging after installing Marshamallow

Hello. I have a Samsung Galaxy Note 5 and I am experiencing charging issues. I am hoping you can help. It all started about 2 weeks ago (actually it started after updating to 6.0.1) when the phone was just draining battery so fast and it suddenly shut down. Before the update I was using the battery at least 1 day long and sometimes 1.5 but then it needed 4 times of charging a day. Then I thought the battery died but before that nothing like this happened). And it is not charging over 82%. Also, it takes a lot of time to charge.(It says fast charging but it takes more than 3 hours). Normally maximum in 2 hours and the battery get fully charged. but now even after 4 hours it is not getting over 82%.

I never plugged the phone out before it fully charged but now it become impossible to that when it is not getting over 82%. This is really being annoying. What should I do? Thanks in advance for any help/advice you can give! — Feza

Solution: Hi Feza. Firstly, we are assuming that your phone is not rooted and it’s not running custom firmware. If you are using non-official Samsung firmware, find a solution somewhere else, preferably from the community that uses and developed the said software.

If your phone was never rooted before, the usual dose of software troubleshooting may help. The first thing that you want to do is to wipe the cache partition to give the phone an updated system cache. If you haven’t done this before, follow these steps:

  • Turn off your Samsung Galaxy Note 5 completely.
  • Press and hold the Volume Up and the Home buttons first, and then press and hold the Power key.
  • Keep the three buttons pressed and when ‘Samsung Galaxy Note5’ shows, release the Power key but continue holding the other two.
  • Once the Android logo shows, release both the Volume Up and Home buttons.
  • The notice ‘Installing system update’ will show on the screen for 30 to 60 seconds before the Android system recovery screen is shown with its options.
  • Use the Volume Down key to highlight the option ‘wipe cache partition’ and press the Power key to select it.
  • When the process is complete, use the Volume Down key to highlight the option ‘Reboot system now’ and hit the Power key to restart the phone.
  • The reboot may take a little longer to complete but don’t worry and wait for the device to become active.

Once you’ve ensured that the phone has now a new system cache, the next good thing to do is to calibrate the battery again. Refer to the steps provided above on how to do it.

Because your issues do not appear to have obvious causes, it’s also good if you can check if one of your apps is to blame. This is done by booting a phone to safe mode. Here’s how:

  • Turn off the phone completely.
  • Press and hold the Power key.
  • Once ‘Samsung Galaxy Note5’ shows, release the Power key and immediately press and hold the Volume Down button.
  • The phone will restart but keep the Volume Down button pressed.
  • Once the phone has finished restarting, ‘Safe mode’ will be displayed in the lower-left corner of the screen.
  • You may now release the Volume Down button.

Safe mode is not a solution in itself but if the issues are not present when it’s on, you can bet one of your apps is problematic. In this case, you want to invest more time in narrowing down the causes by removing apps individually and observing the phone again after each uninstallation. This manual process can consume a lot of your time so try to remove apps that you’ve added recently. You can also pick apps from dubious developers first to save you time.

If you want to reverse the process, you can do that by doing a factory reset, then observing the phone after installing an app. This means that you must do a factory reset first and observe the phone for some time as well, just like what you want to do after booting in safe mode.

Remember, if nothing changes whether the phone is in safe mode or after a factory reset, that may mean that the battery may not be working properly. It may be damaged and needs replacing, or there may be another unknown hardware issue behind the trouble. Whatever it is, you must contact Samsung or any relevant party for repair or replacement.

Problem #5: Galaxy Note 5 microphone and speaker not working properly

Well, I think there is a problem with my microphones. It recently happened. My phone was not in water or any sort. Whenever I record something and play what I recorded, I can’t hear a thing I said. Sometimes I hear myself. But it is at a very low volume, very very soft. When I scream at the phone whilst recording, I still have a very soft voice. When I call someone or receive a call I can hear the person very clearly. But the person can’t hear me that well. Now recently, when someone calls me I can’t hear a thing and he can’t too. This phone has become useless. I’m using a Galaxy Note 5 by the way. Please help. — Kganya

Solution: Hi Kganya. It does appear to us that you have a malfunctioning microphone and speaker. That means there’s little to nothing that you can do on your level to fix it. Some of the usual causes of a broken hardware includes water/liquid exposure, heat or cold exposure, or shock from accidental drop. If any of these things happened to your phone, stop whatever you’re doing and consider having the phone replaced.

If you want to find out if the issue lies on the software, these are things that you can try:

  • Wipe the cache partition.
  • Observe the phone in safe mode.
  • Install system and app updates.
  • Restore all software settings via factory reset.
  • Flash stock firmware (use Google to find guides on how to do it).

Remember, if nothing changes after you do all these software hacks, consider having the phone replaced.

 


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  1. My Note 5 just updated last night and now it is going crazy. Doesn’t want to charge on original charger. The beep you hear when plugging into charge constantly goes off even when not charging. The screen will come on and start on randomly after being asleep for hours. It makes strange noises that I’ve never heard before. The screen switches around and has strange colors. It won’t text sometimes and the screen freezes and at timesome my phone call won’t come through. Just about everything has gone haywire. Please help.

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