in ,

Galaxy Note 4 won’t turn on after Marshmallow update, other issues

Looking for solutions to your #GalaxyNote4 issue? This post might help. For those who are yet to see their issues published and answered, keep watching for more similar posts in the near future.

Below are the specific topics covered in this post:

  1. Water damaged Galaxy Note 4 black screen issue
  2. Galaxy Note 4 SIM card slot not working
  3. Galaxy Note 4 starts freezing and lagging after getting dropped
  4. Galaxy Note 4 charging issue after phone got wet
  5. Galaxy Note 4 won’t turn on after Marshmallow update
  6. Galaxy Note 4 won’t boot normally after attempting an Android update

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: Water damaged Galaxy Note 4 black screen issue

After dropping my Note 4 in the toilet, the screen went black but would light up briefly. After reading the forms, I cleared the partition cache. Phone worked perfectly for 2 days except the green led light stayed on. 2 days later I woke up and unplugged Note 4 from charger and phone is back to the black screen but screen will still light up briefly. I can hear all notifications sounds. This time when I try to reset or reboot phone the blue recovery words do not appear in the upper left hand corner of phone. I see the Android robot and it’s says “installing system update” then it says “no command” with robot lying on his back. When I cleared the partition cache the last time I was able to get the recovery screen to appear by pressing volume up and power. This time phone will just restart everytime. Any info would be greatly appreciated. — Ttutt75

Solution: Hi Ttutt75. The Galaxy Note 4 is not a water-resistant electronic device so even a quick dip in water can potentially cause a serious issue. If the issue you mention above was not there before the phone was dropped in the toilet, you can safely assume now that you have a hardware problem. This means that whatever software issue you will be doing at this point will be pointless. To get to the root of the problem, you must have the device checked, repaired, or replaced. Problems arising from water damage can be anything.

An important thing that you should have done immediately after the drop was to open and clean the phone to ensure that the inside components are free of moisture. Since this was never done, it’s possible that the motherboard or more than one hardware component may no longer be working properly at this time. This is the main reason why a full hardware check is necessary to evaluate whether or not the phone can still be repaired or not.

Problem #2: Galaxy Note 4 SIM card slot not working

Hi guys. I am contacting you regarding an issue I have with my Note 4 dual SIM. It suddenly stopped working properly with the SIM card slot 1. While the SIM card seems to be recognised by the mobile (it appears in the settings and i am asked to enter my pin code) the phone could not connect to the network (i have the crossed circle instead of the signal strength). I have tested the SIM card with other phones and it is also working with the slot 2 on this phone. I have reset (soft and hard) the phone without any success. I have been looking over the internet for similar issues but I could not find any pertinent answer. What do you think about this? Any ideas how to solve it? Thank for your help. Regards. — Hedi

Solution: Hi Hedi. Looks like you have a hardware problem. Find a way to have the phone repaired or replaced.

Problem #3: Galaxy Note 4 starts freezing and lagging after getting dropped

Hi. I am Anas having N910G from last 1 year. I have flashed several ROMS and my Note was working fine. Since one week i am having lot of issues. I was on Dr. Ketan Rom and it was working flawlessly then suddenly one day my Note fall from bed to ground and S Pen came out. There was not damage to screen or any external part. But after that my phone starts freezing, lagging and overheating. So i thought problem was with ROM and i went back to stock rom flashed via Odin. But the problem still persist. So i did a factory reset and removed all apps then reinstalled stock rom again. Till now i am having issues with phone as soon as i open 3 to 4 apps phone freezes and restart. Sometimes if doesn’t restart then lags for 10 seconds. i am unable to figure out issue whether it is hardware or software. Please help me out. — Anas

Solution: Hi Anas. Like water damage, dropping an electronic device can lead to all sorts of problems because there’s no easy way to know what component may have been damaged. That flashing other ROMs did not resolve the issue is a clear indicator that you are not dealing with a software issue. Have the phone repaired or replaced.

Problem #4: Galaxy Note 4 charging issue after phone got wet

Hi. This afternoon i went on the journey behind the falls @ Niagara falls new york. you basically go very close to the falls & you get really soaked so i took my phone out for a few seconds to take a picture & it became soaked but it was still working 10 minutes later. i went to a restroom & i opened my phone, took out the battery & dried under the hand blower & every thing was fine. but like 4 hours later when i wanted to charge it it didn’t charge only when it was off & even then the charging signal kept on going on & off every few seconds.

So once i got home which was like 5 hrs after it became soaked i put it into rice. im going to leave it in there for 10 hours but i don’t thing that will help because every thing works perfectly besides the charging & i but it in so late so plz help me asap thank you. — Tuly

Solution: Hi Tuly. Like what we’ve been saying for above cases, you need the phone checked by a professional so a full hardware check can be done. There’s no way you can fix a hardware problem on your end unless you risk bricking the phone further by doing a repair yourself.

There’s a chance that the problem may be limited to the charging port only so you may want to start by replacing that specific component. Our blog does not provide hardware diagnostics and repair tips so you must do your own research to look for a guide online. Keep in mind though that water damage is a tricky issue. The problem may not be isolated to a certain component so even replacement of a certain damaged part may not fix the problem. Also, repair requires skill, experience, and a special set of tools. If you are willing to invest in such tools and if you are confident that you can do the repair, then we suggest that you do it yourself.

Problem #5: Galaxy Note 4 won’t turn on after Marshmallow update

I got my Note 4 in April, 2015. Had no problems until the Marshmallow 6.0 update. My phone started to lag a lot and restart at random times. Up until the point where it would not turn on at all. I bought a new battery and got a new charger and those didn’t fix the problem. I tried all of the tricks they say to do online but those wouldn’t work either. So i ended up buying a new phone (note 5). Before getting the note 5 i asked sprint customer service if i had insurance and they said i did. So i took it today to the sprint repair center and they said they could do it so i waited 2 hours and wasted gas just for them to say i didn’t have insurance and i would have to pay $350. I wanted to see if there was any way to get my phone back on so i can use it like an mp3 player or camera because it is a great quality phone. I’ve tried everything and nothing seems to work. Please get back to me. Thank you. — Ryan

Solution: Hi Ryan. What “everything” have you tried? It would have helped us to know what previous solutions you’ve already done. Anyways, the potential solutions that you can try are the following:

  • wipe the cache partition
  • update ALL apps
  • factory reset

Delete the cache partition. The cache partition is a directory where Android save files used for apps to run smoother and faster. If you’ve noticed, apps usually load slower during the first time you run it since installation. But the next time you open it, it would be faster and even smoother. Of course, not everybody can notice that.

Wiping the cache partition is one way to get the phone out of Safe Mode or from being stuck on the logo during boot up. This procedure will all files stored in the cache partition, and how it’s done on the Note 4:

  • 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 the option ‘wipe cache partition’ and press the Power key to select it.
  • When the wiping of the cache partition is finished, highlight ‘Reboot system now’ and hit the power key.

Update ALL apps. Updating to a new Android version does not update apps. It is your responsibility to make sure that all, and we mean all, apps are compatible with the new OS. If there’s no update available, uninstall them. An incompatible app can cause conflicts with an OS  that might lead to problems with other apps or features.

Restore software settings via factory reset. As the name suggests, factory reset will bring software settings to their original state. The procedure is the last resort if the above two procedures won’t make any difference. Here’s how it’s done:

  • 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.

Problem #6: Galaxy Note 4 won’t boot normally after attempting an Android update

Hello. This morning I woke up to an alert that there was an update available. I installed the update and the phone automatically shut down, installed and then restarted. Before getting to the normal home screen, it ran an optimization of applications. One fourth of the way through it received a large triangle icon with an exclamation mark inside with the following message:

“Security Error: This phone has been flashed with unauthorized software & is locked. Call your mobile operator for additional support”.

Now, I have not flashed my phone and I do not know which app may be triggering this. At this point I want to know if there is a way to back up information that is on it before doing a factory reset. Thank you, any help is very much appreciated. PS- I am not sure what my latest version was. Could have been marshmallow or lollipop. — Andrea

Solution: Hi Andrea. There’s no way to back up your personal data if your device refuses to boot normally. The best thing that you can do right now is to contact your wireless carrier and tell them about the issue. Of course you can try factory reset first to see if you can resolve the issue that way.


Engage with us

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. 

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.


Leave a Reply
  1. I had a similar experience to the one in Problem #5, and have tried all of the suggestions given, but my phone still has problems. The Wake Lock app is very helpful if you can get the phone to turn on, as setting it to level 4 keeps the phone from freezing, but when the phone dies it does not turn back on for days at a time. Does anyone know of any other suggestions?

  2. Hi! My Note 4 – N910G got problem. At first the phone gets extremely hot every time I use it. The charging became longer and the battery dies faster. After few days I can’t use it anymore because it just keeps on restarting, it does not even reach to the main screen, it stops is the Samsung logo and then restarts again… I tried to change the battery but it is still the same. I tried to wipe the cache partition but it’s still the same. I actually want to get the files that is saved in the device but it does not connect to the pc as well even if I change cables

Leave a Reply

Required fields are marked *

Galaxy Note 5 shuts down when battery level reaches 60%, other issues

Galaxy Note 7 supposedly catches fire while charging