Galaxy Note 5 battery percentage changes randomly, other power charging issues

Do you have any power problems with your new #GalaxyNote5? This post shows you that you are not alone. Below are some similar problems that other users have encountered with their brand new phone:

  1. Galaxy Note 5 only boots in Odin/Download mode
  2. Galaxy Note 5 battery percentage changes randomly
  3. Solution for Galaxy Note 5 not charging
  4. Galaxy Note 5 won’t power on
  5. Galaxy Note 5 notification settings

Problem #1: Galaxy Note 5 only boots in Odin/Download mode

22/01/2015 – Phone restarted itself unknowingly, booted back into Android eventually, reset again then booted back in, slowly.

23/01/2015 – Must of turned itself off overnight, phone was not on charge, only headphones in. This morning it won’t boot past the Samsung Galaxy Note 5 point.

Phone does overheat at times, unsure if this is a problem as it still powers on, I believe it is a software problem. I have tried Hard Reset. Cannot access recovery mode, the Updating System droid comes on the screen for 5-7 seconds then disappears then goes through the loop with the Samsung Note 5 1st screen and no further. I tried to access this to wipe the cache.

It does enter download mode, but if I connect it to PC/Laptop nothing comes up.

When I plug the charger in and hard reset, it comes up with just the lightning bolt, no dots to show its charging. Occasionally the bottom buttons flash and then resets again and stays on the charging screen but nothing happening.

I did a force reboot the first time it froze as I stated above and it worked now it doesn’t even come to the colorful Samsung screen to boot.

Note : It is an international version of the phone, I bought online. I tried looking for the firmware, but I can’t even find the phone in USB mode in ODIN.

Download mode is the only option that comes up without resetting on itself. But I cant do anything with that.

Totally baffled to why it is doing this all of a sudden. — Chris

Solution: Hi Chris. Looks like the situation leaves you little to do to fix this issue. If the phone boots in download mode but the PC can’t detect it, that means you cannot even attempt to flash a new firmware to try to boot normally again. A situation like this usually happens after a failed software modification. At this stage, there’s nothing more that we can tell you in terms of solution except for a request for replacement. We doubt if even Samsung can fix the issue themselves given how the phone behaves when hooked up to a computer. The best that they can do is to also issue you a replacement. Depending on the phone’s warranty status, the replacement may be free or not.

Problem #2: Galaxy Note 5 battery percentage changes randomly

The battery percentage shows random amounts. I can have 80% battery and then suddenly it will go to 2% battery shut off if I immediately restart it it will show 49% battery without being charged. Sometimes it will charge to 100% other times it will not and stop anywhere between 50% and 80% and goes no further no mater how long left on charge. I sometimes get errors that the phone is not charging because the battery is overheated. The percentages I’ve given are just an example I can find no rhyme or reason to the percentages displayed just before writing this the phone shut down because of a dead battery. I immediately turned it back on and now I have 38% battery without charging, it has even gone from 80% and charging to shutting off while plugged in. This problem just started within the last 3 weeks before then it functioned perfectly.

I have tried the soft reset. I’ve done a factory reset and not installed any apps and still have the same problem.

The phone has become almost unusable because of this, when I’m using it all applications run perfectly until it randomly shuts off or reboots.

The charging problem happens no matter whether I charge it using Samsung wall charger, PC USB, or third party charger.

Any ideas you might have as to the cause of this would be appreciated. Thank you. — Tony

Solution: Hi Tony. The phone’s battery must not be working properly causing the incorrect reading most of the time. An issue like this can be caused by either a bad operating system or a malfunctioning hardware. Since you have already tried doing the factory reset, the next best thing that you can do now is to ensure that the phone is checked by Samsung so they can determine if the battery needs to be changed, or if there’s another component that triggers the problem.

Problem #3: Solution for Galaxy Note 5 not charging

This is more of a solution. Not sure if you are still updating your old posts, but if you do. I have managed to fix a rather annoying problem with a  very easy solution.

So as many people have to face the fact, the Galaxy Note 5 sometime will become dead and not turn on as to what ever reason.

Yes, I have read your post on how to troubleshoot this sort of a problem, but unfortunately none of those tips worked. Yes, the phone would no longer turn on nor charge (if using a main wall socket). But, when all hope was nearly gone, I decided to simply plug it into my laptop, via a USB. And kabam, it actually began to charge and then turn on out of the blue.

And no, I have not managed to find this advice anywhere on the web (so far in my 5 minutes research today). Well anyways, if you are going to update your Galaxy Note 5 troubleshooting guide. Add this tip, as it actually did help me out a lot. Thanks for reading, hope to hear from you..maybe. — Taut

Solution: Hi Taut. We are glad that you also managed to fix your own issue by doing what you did. Troubleshooting an Android device that doesn’t boot up normally, or even charge can sometimes become tricky, especially if one does not know the full history of such device. Our troubleshooting tips are most of the time working within the given history of our readers so they may not cover the entire spectrum of possible causes. Anyway, we appreciate the effort, time, and of course, the solution for this common problem. Don’t forget to get back to us if you’ll encounter other issues in the future.

Problem #4: Galaxy Note 5 won’t power on

I bought a brand new unlocked Note 5 off eBay. It worked great for about 3 weeks. Then I started noticing the sound would go out and it would just make a pop sound instead of notes and music when tapping buttons, screen, etc…, or no sound at all when trying to watch videos like on Facebook. It was intermittent. I formatted and wiped the cache last night to see if some app was causing the issue. Then just this morning I had the phone in my hand and was about to send a text when the phone, with absolutely no warning, just shut off. It will not boot back up. No LEDs light up. The battery is fully charged. I tried your suggestions but it is completely dead. The phone has not been dropped or has any damage whatsoever. It is a new OEM phone. I do not know what my next step should be. Can you help? Note 5 sucks.

Sincerely. — Greg

Solution: Hi Greg. Make sure that you leave the phone charged for at least 30 minutes first. Afterwards, try booting the phone in another mode — recovery, download, or safe mode. We recommend that you try recovery first so you can attempt a factory reset. For easy reference, we’ll provide the easy steps how these procedures are done.

How to perform a factory reset on a Galaxy Note 5

  • 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.


How to boot a Galaxy Note 5 in Download Mode

  • Turn off your phone by pressing once on power button and by selecting “power off”, or by pressing and holding the power key for a few moments.
  • Then, press and hold the Power, Volume Down and Home buttons for a few moments.
  • Keep pressing these keys until the download mode is being displayed.
  • You can now connect your smartphone with your computer and use Odin for resuming the update operation you have to complete.


How to boot a Galaxy Note 5 in Safe Mode

  • 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 Vol Down button pressed.
  • Once the phone has finished restarting, ‘Safe mode’ will be display in the lower-left corner of the screen.
  • You may now release the Volume Down button.

If your Note 5 won’t boot in any of these modes, the next best thing you must do is to have it checked by Samsung for warranty repair or replacement.

Problem #5: Galaxy Note 5 notification settings

I have problem with Notification settings (And also Do not disturb function). I would like to be able to see the email body when it shows on lock screen and also pop up when I receive email. Not sure if I will need particular app/ theme to be able to do this? Currently it only shows up how many emails i received and in which email account i received, not sender or subject.

I used to use iPhone 5 and i would like to know if there is a setting which I can make to have it similar to iPhone.

– reject calls when i turn it on (Right now it only turns call to silence and no vibration)

– Hide all notification on both lock screen and pop up while I’m using the phone.

I have tried set the email notification in Do not disturb to hide notification, but it turned out that it also hidden when the DND mode is off too.

Please let me know if there are ways to fix this.

Thank you and looking forward to hear from you 🙂 — Ninjah

Solution: Hi Ninjah. In general, Android operating system differs in a lot of ways from iOS environment including how notifications are handled and implemented. Right now, and assuming you have Android Lollipop running, the email app notification scheme works exactly as you have described it here. If you want to change how your lock screen shows incoming emails, go to Settings>Sound and Notification menu. Make sure not to nominate your email app as Sensitive to force the phone to display email notifications on the lock screen.

We’re not exactly sure what you meant by “reject calls when i turn it on (Right now it only turns call to silence and no vibration)” but if you need more details on how to manage calls, try this guide first.



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If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem. 

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Harvey is keen with mobile technology and loves writing about all things mobile. He is passionate in helping technology-challenged people by finding resolution to their issues.

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