Galaxy Note 4 randomly shuts down, losing battery power fast, other issues

Hello guys! Here’s another post about #GalaxyNote4 issues and their corresponding solutions. Be sure to also visit our main Note 4 troubleshooting page should you want look for other issues and solutions for this device.

Below are the issues and solutions we’re discussing for you today:

  1. Galaxy Note 4 randomly shuts down | Galaxy Note 4 drops calls while driving
  2. Galaxy Note 4 freezing up | Galaxy Note 4 won’t turn on
  3. Galaxy Note 4 losing battery power fast
  4. Galaxy Note 4 unable to connect to cellular network after repair | Galaxy Note 4 keeps showing “mobile network not available” error
  5. Galaxy Note 4 shuts off when it’s not connected to a charger
  6. Galaxy Note 4 with a broken power button won’t boot up

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 randomly shuts down | Galaxy Note 4 drops calls while driving

Hello. I have many issues with my Note 4, so I will list them and the steps I have taken to resolve them.

1.) The phone drops calls while driving. I was told this is due to the phones ability to switch between towers. I have had this phone for about a year and half and the issue developed in October.

2.) The phone randomly reboots for no reason including while charging in the middle of the night.

3.) There is lag time while typing.

4.) Sometimes, it lags when swapping between apps. Definitely not a seamless transition most of the time.


1.) Started in safe mode. Still drops calls while driving

2.) Network is LTE and not global

3.) Factory restart

4.) Contacted phone carrier who told me this is common on Androids. I don’t think this a reasonable answer. I should be able to use my phone if there is service available. Had no answers for random restarts other than “its common on your phone”

5.) Contacted Samsung and was told they have no complaints about this phone. I was happy with phone until October, clearly some sort of update has caused this. I would love ideas on how to fix the problem. — Serena

Solution: Hi Serena. That factory reset did not help is an indication the problem is not software in nature. You either have to (1) replace the battery or, (2) consider replacement if the issue continues.

A malfunctioning battery can manifest in many ways including random reboots, slow performance issues, and erratic app behaviors. Your Galaxy Note 4 has a lithium-ion battery that can gradually degrade as it ages (yes, 1 year is old for a battery of this type). Keep in mind that the battery starts losing capacity the moment it left the factory, and not the day you unboxed the phone. It’s possible that it has now lost significant battery capacity so using a new one is highly recommended.

Before you get a new Samsung battery, try to recalibrate the old one to see if that will make any difference. Here’s how:

  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.

If battery calibration or a new battery won’t make a difference, have the phone replaced.

Problem #2: Galaxy Note 4 freezing up | Galaxy Note 4 won’t turn on

Hi there. Let me first start by saying thank you for your time. I have the Samsung Galaxy Note 4 on O2 network. A couple of days ago it started freezing up on me mainly when waking up from dimmed screen. I also had some lagging during usage. So I cleared all cache. still the same.

So I backed up bits and bobs and did a factory reset. After the reset, the phone switched on and says installing system update for a bit then my poor Android lays down and then is stuck on ANDROID recovery MMB29M.N910FXXSDQA1 SAMSUNG/TRLTEXX/TRLTE 6.0.1/MMB92M/N910FXXS1DQA1 USER/RELEASE KEYS with a list of options which I’m sure you have come across reboot system now reboot to bootloader etc….

I have tried all apart from apply update ADB and apply update from SD card. None have got me anywhere, just back to the same place. I have taken SIM and micro SD chip out and tried the same options again. I have plugged it into laptop and it isn’t even picking it up. Any help you have would be appreciated thank you. — Donna

Solution: Hi Donna. There’s no definitive way to know the exact cause of an Android problem so the process of eliminating possible causes is often the only way towards a solution. If your Note 4 is now stuck in recovery mode and you can’t turn it back on normally, try the other two alternate boot modes (safe mode and download mode) and see if you can do follow up solutions. If, for example, you will be able to boot to download mode but not to safe mode, your only way out may be to flash official firmware. The available solution depends on how your phone responds so make sure to try all boot modes. Here’s how:

Boot in Recovery mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. You can either wipe the cache partition or do a factory reset when in this mode.

Boot in Download Mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  4. Wait until the Download screen appears.
  5. If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.
  6. Use Google to look for a guide on how to do it.

Boot in safe mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and hold the Power button.
  3. Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  4. Continue holding the button until the phone finishes rebooting.
  5. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  6. The only difference of safe mode from normal mode is that the former prevents third party apps from running. If you can boot the phone in safe mode but not in normal mode, uninstall all apps until the issue (that prevents you from booting normally) is eliminated.

Remember, if your phone won’t boot normally again, a deeper issue must be behind it. It can be a bad hardware, a corrupted bootloader, other unknown issue. All these cases are usually beyond an average user to fix so consider having the phone replaced.

Problem #3: Galaxy Note 4 losing battery power fast

Hi. i am having several issues with my phone and I’m not sure which one to address first. My Samsung Galaxy Note 4 cannot run on a full charge per day. I use several remote battery chargers in a day. I’m not sure if it’s because i use my phone much more lately or my battery life has decreased. I’m thinking of replacing the battery.

Also, the memory is maxed out. Could this be using up more of the battery? Maybe i should add more memory first?

Lastly, the USB charging port may be faulty again. I’ve replaced it once before when i had the same issue i have now of the phone not always charging when connected to the charger. When plugged into the charger the phone doesn’t always recognize it. There is no lightning rod over the battery life as there should be when it is actually charging. This is happening more and more until yesterday i couldn’t get it to charge with all but one cord. The charging cord isn’t always recognized when plugged in or it disconnects from it on its own. I’ve tried different cords to no avail. Could you please advise me on the steps i should take to repair my phone?? Thank you. — Caryn33

Solution: Hi Caryn. Let’s deal with the battery drain issue first.

Battery drain issue, just like any other Android problems, can be caused by software or hardware issue. But unlike regular problems, there’s one other important factor to consider when troubleshooting it — usage habits. If you keep finding the battery running out before the day is done, the first thing that you must look into is how smart you are in managing battery power. Installing a lot of apps, allowing unnecessary services, apps, and features to work even if you’re not using them, and turning screen brightness all the way up are just some of the things that can suck battery power fast. Try to do some research on how to minimize battery consumption on your device and you will find out that most of them are actually common sense simple.

If you’re already doing all the best practices when it comes to minimizing battery power consumption on your device, that’s the time that you want check if software issue is to blame. Do a round of factory reset to revert all software settings back to default, then go over your apps to see what you can leave uninstalled. Keep in mind that the more apps you install, the faster the battery drains. Lowering the number of apps can significantly remove the number of things running in the system.

If battery drain continues, it’s possible that the battery may have simply lost significant capacity over time. As mentioned above, a lithium-ion battery gradually loses capacity the moment it leaves the factory. The more you use it day and day out, the faster this degradation becomes. Try using a new Samsung battery if nothing helps at all.

Lack of storage space does not result to battery drain issue so you can rule it out as a possible cause for your power problem.

Finally, yeah, the charging port may be broken again. Diagnosing the cause of the problem is simple — if a known working charger does not charge the phone at this time, then a bad charging port may be the cause. If you broke the original one with the way you use your device, there’s no reason the replacement charging port won’t get broken again.  There’s no way we can know that for sure though so you either have to replace the charging port again, or find someone that can help you diagnose the issue.

Problem #4: Galaxy Note 4 unable to connect to cellular network after repair | Galaxy Note 4 keeps showing “mobile network not available” error

Hi. I purchased my phone about 3 weeks ago and after being knocked off my pushbike by a young punk, had to get my broken screen replaced. I was able to use the phone after the accident but the purple dye took over the screen, hence getting it replaced. I received my phone back today and it appears to be in great order. However, I have a ‘no service’ in top left and when trying to make a call, I get “mobile network not available.” My contacts and text messages have loaded on the phone.

Also, I have removed my SIM and put into my old phone again, it works fine. I have removed/replaced SIM and battery several times. I have selected Network operators automatically and received a ‘registered on network’ notification. I have even done a factory reset. Do you have any further suggestions? — Sam

Solution: Hi Sam. The accidental drop or repair process may have damaged the phone’s antenna. A bad antenna can result to disconnected or intermittent cellular connection problem so make sure to have this component checked. If this particular chip is working, then other motherboard issue may have affected the network function of the phone. If you’re lucky, a technician may be able to isolate the cause and fix the issue for you. Otherwise, you may have a  permanently damaged phone.

Problem #5: Galaxy Note 4 shuts off when it’s not connected to a charger

Hello, I have a Samsung Galaxy Note 4. The phone works otherwise well except lately been having issues with what seems to be not holding a charge after unplugging from the charger. For example, after about 10 minutes off the charger, the phone goes dead and battery percentage reading shows it is low rendering it, otherwise useless unless plugged into the charger. I am guessing it is the battery perhaps? I have ordered a new one.

However, I took it to a local AT&T store to see about replacing it and was told it was NOT the battery but a “data issue” corrupting the phone and nothing they could do and suggested a new device!

The phone is about 2-3 years old (I think). Is there anything that can be done to rectify this before having to consider a new device? I’d like to keep the phone I have as it works fine with no other issues. I know that the model has been discontinued but surely there is something that can be done. Any information would be greatly appreciated. Thank you!! — Lisa

Solution: Hi Lisa. It’s possible that the problem may lie on the battery only so we say you go ahead with the battery replacement first. If a new battery won’t fix it, do a battery calibration (steps provided above) and factory reset your phone. If your phone continues to drain battery fast and shuts down after 10 minutes or so after unplugging it from a charger, there must be a deeper hardware issue that we don’t know about. In this case, you must consider having the phone replaced.

Problem #6: Galaxy Note 4 with a broken power button won’t boot up

Hello. I have a Samsung Galaxy Note 4 phone. It wouldn’t turn on. Two to three days ago, I noticed my power button stopped working. So I just used the home button. But yesterday I tried to do phone update, as the message had been appearing asking to do an update. After I clicked on to perform an update, it showed the logo on the screen (probably.. I don’t remember exactly how it was) and then the screen turned black. I thought that the update process is going on maybe. Then after a few min I’m looking at the screen – it’s still black. Now it wouldn’t turn on. I had a few times when screen showed the logo for about 2 seconds and then turn back black, after I took the battery out and put it back in. Battery was charged, maybe 60-70%. When I connect the charger – nothing is showing, not LED lights, nothing on the screen. Could you please help me. I have contacts and other info on it that I don’t want to lose.. (I am sorry.. I don’t know about my Android version, I marked ‘Lollipop’, since it requires to fill out that field. So maybe yes, maybe no.) — Veronika

Solution: Hi Veronika. You said your phone’s power button is not working so make sure that have it fixed first. A power button is there for a reason. If it’s not working, you won’t be able to obviously turn the phone back on. You need to manually press that button to make boot the phone back up. If you can’t replace that button yourself, make sure to let a professional do it for you.

Once the power button is replaced with a known, working one, charge the phone for at least 30 minutes and see if it turns back on again. If it won’t show any signs of booting up, there may be another hardware problem behind the trouble. Try to use another battery and see if that works. Otherwise, you may be looking at a damaged phone.


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