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How to fix Samsung Galaxy Note 4 that randomly shut off and stuck on 85% charge [Troubleshooting Guide]

The #Samsung Galaxy Note 4 (#Note4) is a slim and wide screen device, much bigger than other Androids. It’s specs are impressive as well as the features but after countless app installations and updates, the device may experience unexpected system crashes. That is the reason why your device will randomly shut offs or freezes when launching apps and becomes very sluggish.

In this post, I will discuss how to boot up your Samsung Galaxy Note 4 device in Safe mode, how to clear the system cache partition, how to uninstall third-party app and how to master reset in a bid to fix the problem. In case you will have any issues in the future, you have an idea how to do a basic troubleshooting in your device. Continue reading the post to know what caused the problem and how to prevent them from recurring.

However, if you were looking for solutions for other issues, then try to visit our Samsung Galaxy Note 4 Troubleshooting page as it contains solutions to problems we already addressed. If they won’t work, then feel free to contact us by filling up this form accurately. Please provide more details in the description field so that we can provide accurate solutions or suggestions.

Galaxy Note 4 randomly shuts down, stuck on 85% while charging

Problem: Hi. My phone randomly shuts off itself. It all start to happen after the system update. If you know the problem please let me know and also phone is not charging fully. It stuck on 85% sometimes even less, only charges fully when I pull out the battery and put it back in. Again if you know the solution let me know. Thanks again.

Troubleshooting: Hello! Sometimes there is a  possibility that it is caused by the software update. There are also other factors to consider to determine what triggers this issue, like for example your device run out of RAM to use; the device performance will be reduced and can cause lags. Or it could be that you have more than two apps open at the same time, you  have to at least close the unnecessary apps to avoid crashes and random shut offs.

You can try changing the battery if you have an extra one because it might be the battery that has a problem. By doing so, you can carefully observe the device and if the issue still remains, then try charging it to know if it can reach up to 100%.

Sometimes it could be the third party apps installed that are causing the problem, some of these apps are carrying malwares that could mess up the system pretty bad. To determine if it is caused by the third party app you have to run your device in Safe Mode. In this mode, all the third-party apps that was installed in your device will be disabled and your phone will run only the pre-installed apps. Here are the steps how to run your device in safe mode:

  1. Power off the device completely
  2. Press and hold Power key + Volume Down key simultaneously
  3. Continue holding until Samsung Galaxy Note 4 logo appears and release both keys.
  4. If the Safe mode will appear on the lower-left corner of the screen, it means the mode is activated.

If the device run smoothly in this mode, it is because the third-party apps are all disabled. If it happened that you can still remember the recently installed apps before the problem occurs then you can simply uninstall them one by one. It will be best if you can also observe the device if it will randomly shut off or if it can charge up to 100%.

If the problem persists after booting your device in Safe mode, we recommend clearing the system cache since you mentioned that it happened after the system update. There might be some old system files that were not deleted during the update process and conflict with other softwares. To clear the system cache partition, here are the steps on how to do it:

  1. Turn your device completely
  2. Press and hold Power key + Home key + Volume Up key simultaneously
  3. If the device vibrates, quickly release the Power key but continue holding the Volume Up and Home key.
  4. When Android recovery menu appears, then release both keys.
  5. Navigate through options using Volume keys and Power key to confirm
  6. You have to highlight Wipe cache partition
  7. Press Power key to confirm
  8. Select the option Yes and press Power key to confirm
  9. The clearing process will start and it will take a moment to complete.
  10. Once it’s done, select the option Reboot system now and press Power key to confirm
  11. The restart process will be longer than the usual restart

Your device will be working just fine after wiping the system cache files. If the problem still occurs, try changing your device’s battery because that might be the problem. The last thing that you should do if ever the problem still occurs is to factory reset your device.

It will delete all your files in your device and restore it back to defaults, so before you proceed we recommend to backup all your files and save it to your SD card or any external storage device.

Here are the steps how to master reset your device:

  1. Go to Apps menu
  2. Tap Settings
  3. Tap Backup & Reset
  4. Tap Factory data reset option
  5. Wait until the process is done, it will take several minutes

After performing all the mentioned steps above and did not resolve the issue, you might have to visit your local tech to have a look at it. Your device might be having some hardware problem.

Galaxy Note 4 shuts down when battery goes down 40%

Problem: Hi! I got this phone from my brother, i am facing phone switch off problem. Whenever my battery goes below 40% fone shutdown, if i try to start, it show samsung note 4 logo and again shutdown, until i connect charger., sometimes it just goes into reboot loop, keep restarting on its own till samsung note 4 logo. Plz help me, whats the problem? battery or software?

Troubleshooting: Hi! Have you ever tried using an Ultra saving mode feature of your Samsung Galaxy Note 4? If not, it is time for you to explore your device and check what this feature can do and function. Basically, this feature will let you customize your device’s power options, by enabling this mode, you can specify how many battery percentage your device will give you warning to start charging. You can try changing your device battery if there is one available, because it might the battery that has a problem. Also, we will recommend troubleshooting steps to  help you fix the bootloop, there’s a possibility that this is caused by software crash. But, you can’t set aside the possibilities of a hardware issues.

Step 1: Charge Your Device First

Have your device charge for several minutes, just enough to powerup the device. You can leave it for an hour or several hours to have enough energy. Make sure that it has an indication that it is charging, it might be waste of time and effort if it’s not. Once it’s done charging, try turning your device on.

Step 2: Boot The Device In Safe Mode

There are instances that you are having bootloop problem is because of the third-party app installed. Some of these apps has malware or virus that can damage your device software and cause problems. If you can still remember the apps that was installed before the issue happened, then you can simply remove it while your device is in safe mode. You can refer the steps above on how to run your device in Safe mode.

Once your device successfully boot up and run smoothly in this mode, we are sure that it’s a software issue. You can then start removing all the suspected app, start from the recent one. How to remove the third-party app, follow these steps: Go to Apps > Settings > Applications > Application Manager > Select the suspected apps > Uninstall. Note: It’s up to you how many installed apps you want to remove.

Step 3: Run The Device In Recovery Mode

If the bootloop still occurs, we recommend running the device in Recovery mode to restore the device the way it was before the issue. In this mode, you can as well choose to master reset your device but, that option will be the last resort in case all troubleshooting fails. You will choose the option wipe cache partition, it is an option to clear the system cache files, Here are the easy steps how to do it:

  1. Turn off the device completely
  2. Press and hold Power key + Volume Up key + Home key simultaneously for several seconds
  3. When the Android mascot display quickly release the Power key but continue pressing the Volume up key and Home key.
  4. Once the Recovery menu appears, release both keys
  5. Using your Volume Up and Volume Down key to navigate through options and Power key to confirm
  6. Highlight the Wipe Cache Partition option and press Power key to confirm
  7. Once the done, highlight Reboot System Now option and press Power key to confirm
  8. Now, the system will restart and it will take longer than the usual restart.

Step 4: Master Reset Your Device

If all troubleshooting steps fail, you can proceed and master reset your device. This is the last resort before bringing your device to a tech but, you have to backup all your important files first and save it to your SD card or an external storage device. It will delete all your files and restore your device back to default manufacturer’s settings. But, if you’re in doubt you can simply disregard this. Anyhow, here are the steps how to master reset you Samsung Galaxy Note 4:

  1. Turn your device completely
  2. Press and hold Power key + Home key + Volume Up key simultaneously
  3. If the device vibrates, quickly release the Power key but continue holding the Volume Up and Home key.
  4. When Android recovery menu appears, then release both keys.
  5. Navigate through options using Volume keys and Power key to confirm
  6. You have to highlight Wipe data/Factory Reset option and press Power key to confirm
  7. Select Yes — delete all data, press Power key to confirm
  8. A confirmation message will appear when the process is done
  9. Then, select Reboot System Now and press Power key to confirm
  10. The system will restart, this time it will take longer than the usual restart.

Step 5: Visit The Nearest Service Center

Bring your Samsung Galaxy Note 4 to the nearest Samsung service center in your area. Your device might be experiencing a hardware issue that needs the specialists attention.

We hope that these guides can help you one way or the other. Thanks for reading and we wish you all the best.

Related Questions

I have here some of the quick questions asked by our readers that are related to the topic we tackled in this post.

Question 1: My Note 4 just shut off on its own so the screen screen went black. I thought it turned off but when messages come in, it plays the notification sound but the screen remains black. What must I do because the phone just won’t respond no matter what I do?

Answer: It seems like the phone’s firmware just crashed leaving the screen blank and unresponsive. It happens all the time but it’s easier to fix. All you got to do is pull the battery out for a minute then press and hold the power key for a few seconds. Place the battery back in and turn the phone on. That should bring the device back to life.

Question 2: My phone shut down after an update and won’t turn back on. If I’d known this would happen, I wouldn’t have installed the update. Can I still fix the problem?

Answer: Maybe, maybe not! We don’t know for sure if it really was the update that caused the problem so before anything else, try to pull the battery out and then press and hold the power key for a minute to refresh the phone’s memory. Place the battery back in and attempt to turn the phone on. If it doesn’t respond, then try charging the device. If it doesn’t charge, then read this post to help you troubleshoot the charging issue: How to fix Samsung Galaxy Note 4 that’s not charging – Troubleshooting Guide.

If the phone charges but still won’t turn on, then try reading this post: How to fix Samsung Galaxy Note 4 that won’t turn on [Troubleshooting Guide].

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