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How to fix Samsung Galaxy Note 4 that keeps rebooting, won’t charge, drains battery fast, other power issues

The battery is among the first components to get damaged as the phone ages. The good thing with the #Samsung Galaxy #Note4 is that it has a user-removable battery, which means that if doesn’t work properly you can just remove it and place a new one.

However, you need to be sure if it’s really the battery that has a problem or it’s just a firmware issue or anything else. So, when troubleshooting a problem related to the battery, it’s better that you start with a simple “battery pull” procedure. You may also press and hold the Power key for several seconds before replacing the battery and trying to turn the device on.

The battery pull procedure, also known as soft reset, is a very effective procedure in fixing minor firmware and hardware glitches. So, if your Note 4 won’t turn on for now apparent reason, it may be because of a system crash or a hardware glitch.

Continue reading to know more about the power issues reported by our readers because if you own a Galaxy Note 4, you may also encounter the issues I cited in this article. This last couple of months, we were consistently receiving issues related to the battery. Here are the problems you can find in this post…

  1. Galaxy Note 4 keeps rebooting on its own
  2. Note 4 battery drains really fast but charges very slow
  3. Note 4 giving out incorrect battery reading
  4. Note 4 ran out of battery, charged for 3 days but won’t turn on
  5. Note 4 switches off when disconnected from charger
  6. Note 4 won’t charge but keeps vibrating every 3 or 4 seconds

If you have other concerns, visit our troubleshooting page. We have already addressed hundreds of Note 4 issues so we might have already provided a solution to your problem. You may also contact us by filling up this form.


Galaxy Note 4 keeps rebooting on its own

Problem: From last 3 days, my mobile start rebooting on its own after getting lag. Unable to navigate, open contacts too. It restarts on its own. Done factory reset and cleared cache 5 times. Not sure issue is with battery or with firmware. Removed SD card too. Please help to fix this. Still I’m warranty period.

Answer: Try plugging the charger in and see if the phone still restarts when charging. If so, then there must be something wrong with it and we just can’t point out what it is. However, if the phone stays on when plugged in, then it’s a battery issue–you need to buy a new battery.

Note 4 battery drains really fast but charges very slow

Problem: My Note’s battery drains really fast. It was at 85% battery and no apps or anything where opened in the background when I got to work. Worked 4 hours and went back to grab my phone and it was at 28% battery left. I went out side and it died saying the battery is too low to turn one. When it shuts off with anywhere between 13-30% battery left it turns it self on and off for about 15 minutes. It also takes like 4 and a half hours to charge my phone up from 30%. Do you think a new battery will fix that? Thank you, Tommy.

Answer: Yes, I do think it’s really a battery issue and buying a new one should fix this problem. The battery is the first component to deteriorate and it looks like the one in your phone is already unusable.

Note 4 giving out incorrect battery reading

Problem: I recently installed a 10000mah zerolemon battery. I now can not get phone to give an accurate  battery reading. Is there a way to get phone calibrated without rooting it or do I need to root phoenix to accomplish this task.

Answer: It happens most of the time may be because the new battery pack has a higher capacity so the phone can’t keep track of the percentage as it usually does with it original battery. However, since you asked about calibration, here’s a few steps that may be able to help you:

  1. Use your Note 4 until the battery runs flat and it turns off by itself.
  2. Turn it on again and let it die by itself just to make sure the battery is all drained.
  3. Plug your phone to a charger without turning it on.
  4. Leave it charging until it reaches 100% (still without turning it on).
  5. When the on-screen indicator says 100%, unplug the charger.
  6. Now turn your phone on and plug the charger again.
  7. Leave the device plugged in for another ten minutes and unplug it.
  8. Use your phone as you normally do and let it drain its battery again until it turns off.
  9. Charge it up to 100% without interruption.

You may be getting the correct reading by now.

Note 4 ran out of battery, charged for 3 days but won’t turn on

Problem: My Note 4 turned off over night as out of power. I have had it on charger for 3 days now and am unable to power the device up. I have tried removing the battery with no effect. I have tried depressing the on button for short and long lengths of time. This is the second time this has occurred. I stumbled on a fix last time but can’t remember what I did. I have only had this phone since August 2015 and am with iinet. Please help. Thank you very much, Lynette.

Troubleshooting: There’s a possibility that it’s a battery problem but before trying put on a new battery, try this first:

  1. Remove the battery of your phone.
  2. Press and hold the Power key for a minute.
  3. Replace the battery to its compartment.
  4. Try turning the phone on.
  5. If it still won’t turn on, try plugging it in to see if it charges.

If your phone charges just fine, then something else is wrong with your device and you need a technician who can do further troubleshooting to find what the issue really is. On the other hand, if the phone doesn’t charge at all, then it’s time you bought a new battery.

Note 4 switches off when disconnected from charger

Problem: My phone switches off when I disconnect from charger, but the battery shows it is fully charged. When I reconnect immediately the phone to the battery, the battery level drops to less than half. Kindly advise.

Answer: The battery is no longer usable, buy a new one.

Note 4 won’t charge but keeps vibrating every 3 or 4 seconds

Problem: Won’t charge. I put battery back in and plug in charger and battery icon pops up for about 10 seconds and then disappears and then phone won’t respond again until I remove the battery and repeat the steps, this is some progress as earlier today before I gently cleaned the charger hole, all my phone would do would vibrate quickly for about half a second roughly every 3 or 4 seconds with no battery or screen activity. I don’t know exactly what is going on here, I have always been very careful with my phone.

Troubleshooting: It looks like the Power key is stuck. That’s the reason why the phone vibrates every few seconds and the phone neither turns on nor charges. Try to press the Power key many times to see if you fix it that way. If not, you may try to remove the cover and fix it or have someone do it for you. As far as your description goes, I think that’s the only problem with your phone.

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13 Comments

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  1. My phone get into huge problems last 2 days with following symptoms:
    – freezing black screen when pressing turn off screen button, sometimes he recovering, but sometimes was only not so I needed to take off the battery
    – random quiet restart only noticeable when I realised that pin code was required (mostly happening in safe mode)
    – sometimes boot failure at restart with the android logo and the message “downloading do not turn off target” (only force restart via volume down + power-off + home combination was working)
    so all symptoms were leading to the idea that is a hardware issue, either battery or CPU that was dying).
    then, since everything was working fine until phone went to power saving/ screen off, I was thinking that something (Android update / 3rd apps) “kills” the CPU so I looked for an app that would keep my phone semi-awake (CPU on, screen off).
    miracle solution: I stopped to a free app called Wake Lock – PowerManager and even read some positive comments from other owners of Note 4. miracle, I installed ans set it as partial wake lock and my smartphone get back to life like in his best moment, no problems ever since!

  2. After doing the firmware update sent from Samsung my phone said it had a ‘flash software error’. It then went off and on several times until the battery drained. I bought a new battery and charger and put a fully charged battery in the phone. Now it turns on, blue light flashes on the left side but the screen remains black. It does buzz like it’s turning off and on but the screen remains black and the phone begins to get hot until I take the top off and remove the battery. I believe it’s a firmware problem that sends a command to the hardware that causes the battery to overheat. Sort of like a kill switch. Are you guys trying to get everyone to turn in their older Samsung phones by forcing them to malfunction to the point of replacement. Because I never had one problem with my phone until the latest software upgrade. I can not afford to buy a new phone at this time. I took really good care of my phone knowing that I was unemployed and still you guys place a ‘kill switch command’, in your phones to force people to turn them in. This is very fishy. I am looking for a real solution to fix my phone one that does not include me buying another phone and loosing all the data that is on this one because systems have been sabotaged. Please help in a way that is actually helpful.

  3. Won’t charge. When I put the battery in and plug in the charger and battery icon pops up for about 2 seconds and then disappears showing 0 charges. My phone would do would vibrate quickly for about half a second roughly every 3 or 4 seconds with no battery or screen activity only when plugged. I don’t understand what the issue is but one thing I know is that it only respond to the charger and not the battery and after awhile it gets so so hot.

  4. My note 4 keeps turning off won’t turn on again I have to keep taking out battery and pressing on/off button

  5. I’m not due for an upgrade for 3 months and my phone shuts down at 60-70%. I did purchase an additional battery and again the same problem. The sales people tried to help me and update my phone, but no fix for this problem. Apparently it’s a common problem with this phone. Grrrr…
    Can anyone help me?

  6. halfway through update note 4 turned off and will not come back on, have replaced battery to no avail???????

  7. Hi
    My galaxy note 4 doesn’t take all the charge from battery. When battery is about 25% it shots down instantly and doesn’t turn on until I use charger.
    It starts to charge from 25%.
    Please let me know what should I do.

  8. My niece’s phone was doing the same, I also thought it was the battery, however after finally getting it to charge by being patient and leaving it off I was able to install the app BATTERYMIX which i have on my phone and was able to find the main culprit. The phone was discharging at 35% per hour, and the 2.1A charger was unable to meet the demand. I used batterymix to disable and uninstall many useless chat, messenger, and other bloated apps that constantly download ads in the background. The worst offender was FLASHKEYBOARD, the worst part is that it hid itself from the uninstall apps menu . The only way to uninstall it is to goto google play and uninstall it from there! but you had to know what you were looking for! How many messengers do you need? stop texting and call people FFS! So in short look at your battery drain vs charge rate before you replace your battery.. And definately TURN OFF AUTO UPDATES!, you dont need them, updates are an excuse for carriers to ill your phone so you have to buy another $600 phone! How many emojis do you need anyway?

  9. Hi, if your Note 4 won’t turn ON , Put it in the fridge for 10 Minute and try again . many device are atemped by this probleme . it must be a hardware problème

  10. My Galaxy Note 4 doesn’t take all that long to charge, but the battery drains fast. It will be at 30% then shut off. When I plug it in, it registers 1 or 2 % but charges up to 100% in a relatively short amount of time. What could be the problem here?

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