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Galaxy Note 4 won’t work unless connected to a charger, other issues

Millions of #GalaxyNote4s are now over a year old on average so a lot of users may start noticing that their battery may appear to require more frequent charging than before. We hope that the solutions we provide below can give the general idea of how to remedy or resolve battery drain and other related battery issues on this device.

For now, here are 7 specific topics we’re covering for you:

  1. Galaxy Note 4 won’t work unless connected to a charger
  2. Galaxy Note 4 shutting off on its own
  3. Galaxy Note 4 keeps freezing
  4. Galaxy Note 4 keeps disconnecting from 4G network
  5. Galaxy Note 4 won’t boot up
  6. Galaxy Note 4 won’t turn back on due to motherboard failure
  7. Galaxy Note 4 can only send and receive SMS when Roaming is enabled

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 won’t work unless connected to a charger

Good day. I have a Samsung Note 4 which will not work unless connected to the charger. It started giving me hassles a day or two before when I would open the camera for example and it would freeze for a few seconds and then restart. It wouldn’t restart fully, only to show the Samsung logo and then start over again and again. The battery wasn’t holding charge well for a little while and would die when it showed 15%. I figured out that when I plugged my phone in, it would start up fully and I can use it as normal. As soon as I unplug the charger it switched off and restarts but now it doesn’t get to the Samsung logo anymore only to the 1st screen saying Note 4 and then restarts to that point again.

I cannot see any obvious damage to the battery etc. Everything still looks new! I have uninstalled apps that I no longer use thinking perhaps one is that cause of my woes, to no avail. I have also tried to start the phone in safe mode. But it still wont start up if not connected to the charger. If I have to do a factory reset please can you advise me as to how I can save my contacts etc., so I can put them back on the phone. Hope you can help!! Thanks. — Cathy

Solution: Hi Cathy. An issue like yours is usually caused by a bad battery. We still recommend that you do some basic software troubleshooting though to ensure that there’s no software bug behind it.

The first thing that you want to do here is to recalibrate the battery. This will retrain the operating system in detecting the actual remaining battery level. After some time, Android may lose accurate battery level tracking. Recalibrating the battery should put the operating back on track. Here’s how to do it:

  • 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.

If nothing changes after calibrating the battery, create a backup of your files so you can wipe the phone clean via factory reset. We recommend that you use Samsung Smart Switch app to move files from your Note 4 to a computer. You need to install the Android version of Smart Switch on your Note 4, then the Windows version on your PC. If you have a Mac, you can use the iOS version. Kindly visit this page to get Smart Switch.

Once you’ve created a backup of your files, factory reset the phone by following the steps below:

  • Turn off the Galaxy Note 4 completely.
  • Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  • When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  • When the Android System Recovery shows on the screen, release the Volume Up key.
  • Using the Volume Down key, highlight ‘wipe data / factory reset’ and press the Power key to select it.
  • Now highlight ‘Yes — delete all user data’ using the Volume Down key and press the Power key to begin the reset.
  • When the master reset is complete, highlight ‘Reboot system now’ and hit the Power key.
  • The Note 4 will restart but it will be longer than usual. When it reaches the Home screen, then begin your setup.

Finally, if factory reset won’t resolve your issue, you should try to get a new battery. Keep in mind that Lithium-ion batteries like the one in your phone gradually loses capacity right after leaving the factory, even if it’s not being used. If your Note 4 has been around, i.e., it’s been over a year old, there’s high chance that your battery has lost significant capacity to hold a charge. Try to stick to an official Samsung battery if possible. Also, make sure to calibrate it right before using it so the operating system can be retrained again.

Problem #2: Galaxy Note 4 shutting off on its own

My phone shuts off on its own. It has been happening every few minutes when I try to make a call or when I try to use apps or phone futures is crashing shutting off and then switching on again . Recently it shutted off and the screen popped up with Android system information that it is downloading something and please don’t switch off. however it didn’t do any progress for around 30min so I had to take battery out to be able to get my phone up and running again. My phone also more often than usual loose the network.

Also recently even my battery is more than 50% the phone keeps shuts off and often I cannot switch it on because it straight away out of power. Could you please help me? Thank you in advance! — Adewale

Solution: Hi Adewale. There are a number of troubleshooting steps that you must do in order to see if the cause of issues you mention here are due to software or hardware. Software problems are relatively easy to do. If nothing changes after you’ve exhausted all software troubleshooting, you can assume that the issue is due to hardware malfunction. Our blog does not provide hardware troubleshooting and solutions (as they almost always lead to repair anyway) so make sure to have Samsung check the phone for a resolution.

Wipe the cache partition

Try wiping the cache partition first. This will force the phone to create a new system cache. Sometimes, outdated or corrupted system cache result to apps acting weirdly. If you wipe the cache partition now, a new system cache will be rebuilt, which can also lead solve or minimize bugs. Kindly do the steps below:

  1. Turn off the Galaxy Note 4 completely.
  2. Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  3. When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  4. When the Android System Recovery shows on the screen, release the Volume Up key.
  5. Using the Volume Down key, highlight the option ‘wipe cache partition’ and press the Power key to select it.
  6. When the wiping of the cache partition is finished, highlight ‘Reboot system now’ and hit the power key.

Install all the latest updates for the operating system and apps

Once you’ve wiped the cache, the next best thing to do is to ensure that you install all available updates. Updates contain enhancements and fixes for known bugs so doing it is a win-win situation.

Uninstall apps

Sometimes, incompatible apps can cause instability problems so be sure that you go over your list of apps and retain only ones you are 100% positive compatible. Try to go over reviews and comments from other readers to know if an app is compatible or not. Uninstall apps you’ve downloaded from third party sources or outside of the Play Store. Bear in mind that the more apps you have, the more chances of a problem developing. Keep your apps to a minimum number and avoid installing those from unknown developers. Stick to official apps as they tend to receive regular updates.

To see if a third party app is to blame, you can also boot the phone to safe mode. Safe mode blocks third party apps and services so if the issues won’t occur, that’s a confirmation that a third party app may be causing the issue. To boot in safe mode, follow these steps:

  • Turn off the phone completely.
  • Press and hold the Power key and the Volume Down key.
  • When the phone starts to boot, release the Power key but continue holding the Volume Down key until the phone finished restarting.
  • Safe mode will be display at the lower left corner; you may release the Volume Down key now.

Wipe the phone with factory reset

A more drastic final troubleshooting step that you can do is to bring all software settings to defaults. Make sure that you create a backup of your files before you do it. If your phone is running stock firmware and is unrooted, you can factory reset it via Settings:

  • From the Home screen, tap the Apps icon.
  • Launch Settings and scroll to ‘User and Backup’ section.
  • Tap Backup and reset.
  • If you want, you can tick the checkboxes next to Automatic restore and Back up my data.
  • Tap Factory data reset.
  • Touch Reset device.
  • You may be asked to enter your PIN or Password.
  • Tap Continue and then Delete all.

Unroot and flash stock firmware (optional)

In case your Note 4 has been rooted and running custom ROM, consider unrooting it and reverting the operating system back to official Samsung firmware.

Have the phone repaired

If all these software troubleshooting steps won’t restore the normal functions of your phone, send the phone in for repair. If it’s still under warranty from Samsung, make sure to send it to them first.

Problem #3: Galaxy Note 4 keeps freezing

Hey, my Galaxy Note 4 keeps locking/freezing usually every second time i open it to check a message or check the web. sometimes it stays like it to a point where i just take out the battery wait about 45seconds to a full minute before inserting, and then it won’t even turn on. sometimes i repeat this method for almost an hour and then it will FINALLY work.

i have wiped cache and even factory reset and it dulls the freezing at times but it still comes back eventually this time when i tried to go into recovery mode it went “kernal panic”, this might be the worst of it i am going through right now its frustrating please help if you can.. thanks for reading. — Tevin

Solution: Hi Tevin. A third party app may be causing the issue so try to restart the phone in safe mode and see how it works. Observe the phone for at least 24 hours while it’s on safe mode to see a difference.

  • Turn off the phone completely.
  • Press and hold the Power key and the Volume Down key.
  • When the phone starts to boot, release the Power key but continue holding the Volume Down key until the phone finished restarting.
  • Safe mode will be display at the lower left corner; you may release the Volume Down key now.

Alternatively, you can do another round of factory reset and observe if the phone continues to freeze even when there are no apps installed. Like in safe mode troubleshooting, make sure to observe the phone for 24 hours after a factory reset. Do not install any update or apps at this time. If the phone works normally without lag or random reboot, that’s proof that an app/s is to blame.

However, if the issue continues when in safe mode or right after a factory reset, the issue must be hardware in nature. Have the phone repaired or replaced.

Problem #4: Galaxy Note 4 keeps disconnecting from 4G network

Hello. Re: Loosing 4G.

My wife and I each have a Note 4. Hers works flawlessly. My phone will sometimes, not all the time, loses the 4G network and will get stuck on 3G until Straight Talk provides me a new SIM card. It gets stuck in 3G when we go out of town where there is little or no signal and the first signal to return is 1x or 3G.

I have Straight Talk, using Verizon towers. Getting a new SIM card is great but kind of a hassle to call in the request 3 to 4 times a year. Before they send a new SIM card, I’ve tried the following, some under the direction of Straight Talk:

  • They verified I am in a 4G network area
  •  Downloaded Updates with Verizon app via my laptop
  • Soft Reset
  • Factory reset
  • APN Check that it is On and Correct
  • Reset LTE/CDMA from Global. (seems to switch)
  • Cache reset per your instructions.
  • Tried disabling “Location” when knowingly going into these areas.
  • Stopped background apps. When this happens, I go to: About Phone and see the following items have changed under Status. However, I can not modify them. Network now says UNKNOWN instead of VERIZON, Mobile network type says: eHRPD instead of LTE, PRL version number changes. I don’t have the correct one but now it is reading 54067.

Any idea if this problem is fixable or is purchasing a new one the less costly fix?  Thanks. — Jeff

Solution: Hi Jeff. That the same phone, under the same condition and being on the same network, does not have the problem yours is experiencing is a clear indication that this is a phone issue. There may be an unknown hardware quirk that causes it to lose 4G connectivity and not able to regain it back.

Repair won’t likely yield a positive result in this one so work with your wireless carrier so the phone can be replaced.

Problem #5: Galaxy Note 4 won’t boot up

Hi. My Galaxy Note 4  won’t boot up. I have tried the standard suggestions, some of which have worked in the past, such as removing the battery, pressing power button to drain excess electricity, and reinstalling; and lightly tapping the power button.

Now, when I reinsert the battery, the Galaxy logo briefly reappears, then shuts down. When I attempt the three-button hold, I get a screen giving me the option to continue by holding the volume button up, or down. When I attempt either of these volume button options, however, the phone shuts down. I opened the phone to examine the power button contact… could not discern any issues there. Any help would be greatly appreciated! Thank you. — Kevin

Solution: Hi Kevin. The only troubleshooting step that you can do in this situation is to attempt to restart the phone to other modes by doing the following:

Boot in Recovery mode:

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

Boot in Download Mode:

  • Charge the phone for at least 30 minutes.
  • Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  • Wait until the Download screen appears.
  • 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.
  • Use Google to look for a guide on how to do it.

Boot in safe mode:

  • Charge the phone for at least 30 minutes.
  • Press and hold the Power button.
  • Once the ‘Samsung Galaxy S7’ logo appears, release the Power key and immediately press and hold the Volume Down button.
  • Continue holding the button until the phone finishes rebooting.
  • Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  • 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.

If your phone remains unresponsive or won’t successfully boot to any of these modes, you’re out of luck. Have the hardware checked or the phone itself replaced.

Problem #6: Galaxy Note 4 won’t turn back on due to motherboard failure

Hi. My Samsung Note 4 battery drained down to 1% while on charge and in use so we turned the device off. Now it won’t turn back on nor even show that the charger is plugged in. It’s just totally dead now but gets hot if the charger is plugged in. I took it to a phone repair shop and they put in a new battery and put it on charge. It shows on the screen that it’s on charge with a new battery in but it just stays at 0% and still won’t turn on even though we know it’s a fully charged battery (by checking in another Note 4). They say it’s the motherboard and that its unfixable. Is this right or could i get a new motherboard? Nobody has opened it up to look inside. Thanks in advance. — Kirstie

Solution: Hi Kirstie. Many technicians uses “motherboard issue” as a blanket term for all sorts of hardware problems that don’t have obvious cause. This means that identifying the real issue is a challenging task, if not impossible. The easiest way to fix a motherboard issue is by replacing the motherboard itself, which can be very costly most of the time. In some cases, motherboard replacement can result to other problems if not done properly so we really don’t recommend it in your case. You are better off replacing the phone with a new one than go through a motherboard replacement.

Problem #7: Galaxy Note 4 can only send and receive SMS when Roaming is enabled

Hi. Recently I dropped my Note 5 and it was too expensive to replace so I reactivated an old Galaxy Nexus phone. The phone was having delay problems with the installation  of apps so I reactivated my Note 4. My carrier is Sprint and they have a self service online way of reactivation steps for the phone. I reactivated it and I shut both phones off as directed. I had a few connection problems but nothing major until in an certain area. I updated the profile and PRL. Ever since that update my phone has 4G LTE and connects to the Internet but when making calls and text messages  I get an error message saying mobile network not available. 

I contacted Sprint, they gave me codes to put in my phone and asked me to factory reset my phone and it didn’t solve the problem. I can only receive and make outgoing calls/messages when I place my phone in roaming. — Jasmine

Solution: Hi Jasmine. An issue like this is caused by incorrect settings, either in the phone itself, or in your carrier’s system. We don’t work for Sprint so we’re not familiar with how their provisioning system works. Kindly call them back and tell them about the issue.

 


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