As the title says: Yesterday, my phone turned off by itself even though it had 80%+ charge. It went into a bootloop when I tried turning it back on and after a while, it booted into Recovery Mode and refused to reboot to system. When I came home, I plugged it in and it started working normally again. After an hour or so, same thing happened. This time, it didn't bootloop or go into recovery mode, it just refused to turn on till I plugged it back in. It has been happening ever since. Will randomly turn off, won't turn back on if I don't plug it in once. Also, it only happens when the phone is folded and sitting idly. It doesn't turn off if I'm using it.
Any new updates, upgrades or apps?
Boot loops are many times 3rd party app related.
Back up all critical data as next time it may go down for the count.
Clear system cache.
Try a hard reboot.
If it persists try running in safe mode to try to rule out a 3rd party app. 3rd party launchers and power management apps are always suspect.
Try to track down the cause, and always suspect malware if nothing else can be found. Avoid a factory reset useless it's malware that can't be purged or if you really can't find the root cause.
Otherwise it's likely to reoccur with the next load.
If a factory reset doesn't get it, the cause could be a SEU, these are rare but can happen. If it's in the user data partition, a factory reset will fix it.
If it happen elsewhere in the firmware it will need to be reflashed. It causes no hardware damage.
Lastly if all the above fails, it's likely a hardware failure. A Samsung Experience Center at a Best Buys can run advanced diagnostics on it and reflash it if needed. If you get stuck this may be a good option if stateside.
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Hey,
yesterday i faced a problem i didn't knew of yet. As i mentioned sometimes, i came from an One M7 2 weeks ago as it didn't work the way it should - camera useless and awful battery life. I rooted the M7, had problems with it and so on - just how it is with a rooted phone + custom roms.
However, due to the DRM i didn't root my Z3 yet. Yesterday i took it out my pocket, thought it was a bit warm.. nevermind. It worked. 30 minutes later i pulled it out again, still warm, and screen wouldn't turn on. I reset it (power and vol+ for those who didn't know), tried to boot again.. well, it took several minutes and finally showed me the attached error message. The system performance was really, really low. Everything stuttered, i couldn't even enter my pin. A few forced reboots later i could finally enter my pin and get into my system only to notice that my data partition wasn't doing fine. I had to set language and so on in the initial setup process, apps kept force-closing in seconds. My own apps were still on the device, however when i tried to open WhatsApp there was no data there, i should have gone through the registration process. The phone froze after seconds each time. I tried to enter the fastboot menu (is it called that way?) while booting to just do a factory reset, didn't find the button combination. So finally, after i found home without navigation from no man's land (sure, why doesn't it happen at home anyway..), i managed to boot it, get through settings and initiate a factory reset. Of course, all the apps were deleted then and i could install all apps like LightFlow again. Had to re-enter all the settings i did in those kind of apps, it was kind of annoying.
So, my questions: Why the hell did this happen to my Z3? Not rooted, didn't even think of it. There wasn't a day on the One M7 without flashing anything and it never happened. It wouldn't have been as bad as it was on the Z3, as i HAD root, could have wiped data in TWRP in a matter of seconds and also had backups of my data, which i of course didn't have for my unrooted Z3.
Is it likely to happen again? Can any app do this on a non-rooted phone? I read a bit about the error, that it would be caused by some apps, but not in the extent as it happened on my phone. Most of the times it would just be an annoying error message.
I got a thing in always getting a defective unit, so i hope it isn't happening again on the Z3
Maybe the internal flash is corrupted/failing. I had a similar issue with my HTC One X I went to nap one day and half hour later it shut down, it restarted but boot looped. Eventually it showed no data partition as being mounted and completely died. They replaced the motherboard.
Better contact Sony, maybe you need a replacement.
Mh, actually that's the least thing i want to do.. I'd have to wait for at least 2 weeks to get it back and chances are that they won't do a thing or damage it (bad experiences with my former Razr i). It works just fine after the factory reset, no errors yet. If it should happen again, i'd of course send it in for repair but i think, until then i will use it normally, with more caution and backups of course.
Probably the cleanest solution HERE
I've posted a similar message on another forum but we haven't been able to get close to solving this yet. A family member has an unrooted S5 which has had issues with Android updates in the past which were solved by using Kies. Since that time there have been no major issues. There has never been any physical damage to the phone. It is out of warranty but slightly half way through the 2 year contract with our carrier.
We put the phone on Ultra Power Save Mode 3 weeks ago Right away it shut down and kept restarting in Ultra Power Save Mode. There is very limited functionality (grey screen with most apps not available) in Ultra Power Save Mode and no way to remove this setting. The shutdown cycle is less than a minute after it starts.
It is important for me to try to protect the data on the phone so I have not done a factory reset yet. I've tried Safe Mode, Recovery Mode, clearing the cache, a soft reset, removing the battery, removing the SIM card, charging the battery fully, fully discharging the battery and none of this makes any difference. It was recommended that I reflash with the stock firmware and I did that through ODIN. The firmware installed, apps optimized, and then the problem started again. At no point has a computer recognized the phone so Kies and SmartSwitch have not worked. I now just keep the battery out so that the phone powers down and doesn't keep cycling.
Forums, including this site, have suggested various solutions. One suggestion was to reboot to a bootloader and type "am enable com.sec.android.emergencylauncher" but I can't find a way to do this. Another was to drag the Google app to the top and click "More" and "Delete updates". There was some suggestiong involving Google Now that I couldn't understand. I just have TouchWiz installed. There were other similar suggested solutions but I can't do any of those as I don't think I have installed the apps that were suggested.
Eventually I think this will lead to a hard brick but I'd like to get the data off before it happens. Thanks for any suggestions.
Try installing a custom recovery make a nandroid, then factory reset. For sure something is corrupted. There are too many apps to restore files after a factory reset.
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My Nan got a new phone from Tescos Mobile a couple months ago.
From what she's told me it seems like this issue has been around since the time she got it.
The phone will randomly reboot into safe mode, disabling all her non-essential apps, without warning and suddenly.
There appears to be no rhyme or reason for it, the only non-android apps on there are 'Tesco Clubcard', 'Lidl Plus', 'Tesco Mobile' & 'Whatsapp'.
It seems unlikely either one of these apps is causing the phone to reboot into safe mode.
When I last saw her I did a factory reset on the phone to see if that resolved the issue.
It was fine for 2 weeks, but then it started rebooting into safe mode again.
She had not installed any new apps in those 2 weeks... I'm pretty sure she doesn't know how to. All I can think is maybe a system update automatically installed that caused this issue to re-occur.
The phone is currently up to date.
I've told her to return the phone for a replacement, but she went to their help desk she was told it would cost £120 (!!!)
I had a look online and it seems like you can only book returns via Tescos online repair and they won't accept returns in person.
It would be preferable just to fix the issue myself if possible... Is there an internal log I can access to get a hint why as to why it's rebooting into safe mode all the time?
Google has been useless. All I can find are guides on 'how to reboot into safe mode', I have yet to find another instance of someone with this problem, but I'm sure it must be common.
EDIT:
It's just occurred to me... I've never personally experienced it suddenly rebooting into safe mode, and google suggests this is not a thing that commonly happens... is it possible my Nan is triggering this with some kind of 'hidden' user input to reboot into safe mode? (ie, holding down the power button and volume button too long)
The problem I have is with the galaxy z flip 3, it worked just fine inthe morning but after it ran outta juice and I charged it to a certain percentage, it stopped working properly, and got into an infinite boot loop, I tried forcing it to restart by long pressing volume down+power , but it didn't work, then I tried opening the recovery by long pressing on volume up+power and yet it also didn't work (I think that maybe it's because it was trying to boot at the time), so have you guys any solutions , please do help me cuz this phone really is important and with all honestly, isn't even mine XD, I'll be waiting for an answer
Your failsafe options are contact Samsung or do a factory reset (and then potentially contact Samsung).
If you can't boot it to anything, the only real option you have is to flash firmware, which likely won't help without wiping.
Unfortunately, not booting doesn't have a whole lot of options that don't wipe data without being rooted. Even then, you'd need recovery.
I see, then I may consider giving it to samsung, as long as they won't reset it, cuz the only reason why the phone is so important is because of the data, altough, isn't there any other way to acess recovery? Cuz I had this problem with the s10 before and I fixed it somehow (a certain Bixby key combination), but this time it seems there isn't any hidden combination.
Samsung is going to reset it. It's a required first step for them to do any work on it, even if the work has nothing to do with the software. What may help find a way to recover the data is starting with how it got to this point. Did you install anything new, change any important settings, or anything else that could have been a part of the issue? If not and it is an unexplained hardware failure, the data is likely gone already.
If it's something you might have installed or changed, it's possible that putting the phone in safe mode and undoing it may solve the issue and let you boot normally.
Booting into Safe Mode:
Make sure the device is powered off (charging is ok, as long as it is not currently trying to boot)
Hold the side key to power on and continue holding until "SAMSUNG" appears and the device vibrates
Immediately release the side key and begin holding volume down until boot completes
If the device has booted into safe mode, you will see a translucent "Safe Mode" in the bottom left
twistedumbrella said:
Samsung is going to reset it. It's a required first step for them to do any work on it, even if the work has nothing to do with the software. What may help find a way to recover the data is starting with how it got to this point. Did you install anything new, change any important settings, or anything else that could have been a part of the issue? If not and it is an unexplained hardware failure, the data is likely gone already.
If it's something you might have installed or changed, it's possible that putting the phone in safe mode and undoing it may solve the issue and let you boot normally.
Booting into Safe Mode:
Make sure the device is powered off (charging is ok, as long as it is not currently trying to boot)
Hold the side key to power on and continue holding until "SAMSUNG" appears and the device vibrates
Immediately release the side key and begin holding volume down until boot completes
If the device has booted into safe mode, you will see a translucent "Safe Mode" in the bottom left
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Well I just asked the original owner (my mother), and apparently she doesn't remember downloading anything new into it, and it just went crazy by itself, also something else I wanna note, I tried charging it and it booted into recovery all by itself, I taught it was weird but Still went and wiped the cache and then when I tried restarting it it suddenly ran out of juice once again, also, it's second display shows some weird curruption/bug or glitch-like lines. So based off of this, can you really find the origin of this problem and if there is really any hope of saving it's data XD. Thank you btw, and once again, I'll be waiting for an answer
There are hundreds of reasons it could do that, including a faulty board. Thanks to the removal of physical sdcard support, you'd need to get it to boot into something with at least adb support to pull anything off it. Stock recovery doesn't provide any ways to perform a decent backup, but it sounds like the only option that wouldn't wipe the device didn't work.
I see, alright, thanks a lot, I'll consider resetting it
It may be worth trying to flash firmware first. Go into it knowing it may reset the device or leave you needing to reset it, but it doesn't hurt to try if you run out of safer options.
Same here, same symptoms, happened in front of my wife's and eyes face. We are fairly techy and understand our way around our devices. We also noticed the device crashed then would make it all the way to the home screen launcher and before catching signal the crash would cause a restart at that point I went in and did a cash swipe rebooted right back into recovery by itself then I unplugged the cable and it was acting as if it has a dead battery but when the cable was last plugged in during a couple of crash and then restarts all the way to the home screen I know the battery was at 70 something percent. My next step is going to probably be flashed the current firmware that just released on top of it as a dirty flash and see if I can get it to boot. If not then I'm going to do a hard reset and see if that works. When plugged in it automatically starts exhibiting symptoms as if the buttons are stuck. The devices in the OtterBox and it's fairly brand new I would say mint. Not dirty or any smudges either. all I'm saying is I'm one of those type of technicians that say yeah right when people say it just happened I don't know where but this actually happened I don't know when I was able to witness it. I'll come back and let you guys know what works and what doesn't. (By the way excuse my grammar I was voice typing while driving )
ariveraiv said:
Same here, same symptoms, happened in front of my wife's and eyes face. We are fairly techy and understand our way around our devices. We also noticed the device crashed then would make it all the way to the home screen launcher and before catching signal the crash would cause a restart at that point I went in and did a cash swipe rebooted right back into recovery by itself then I unplugged the cable and it was acting as if it has a dead battery but when the cable was last plugged in during a couple of crash and then restarts all the way to the home screen I know the battery was at 70 something percent. My next step is going to probably be flashed the current firmware that just released on top of it as a dirty flash and see if I can get it to boot. If not then I'm going to do a hard reset and see if that works. When plugged in it automatically starts exhibiting symptoms as if the buttons are stuck. The devices in the OtterBox and it's fairly brand new I would say mint. Not dirty or any smudges either. all I'm saying is I'm one of those type of technicians that say yeah right when people say it just happened I don't know where but this actually happened I don't know when I was able to witness it. I'll come back and let you guys know what works and what doesn't. (By the way excuse my grammar I was voice typing while driving )
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Hello everyone just a quick update. Once I got home I plugged the device into a Samsung fast charger and Samsung OEM USB type-c cable and realize the device booted all the way to the home screen but register the same battery level as I mentioned above. Device was working as if nothing happened to it. So I updated all the apps on the Galaxy store then updated all the apps left over from the Google Play store, I then proceeded to check for a firmware update because I know the April update just released and installed the update with no issues. Updated the apps that needed to be updated again somehow there's always something and unplug the device from the power cable. Everything was working if no issues about half hour later the device cuts off and does not want to power on. FYI I already had my wife contact T-Mobile and get a warranty replacement we only paid $5.00 so my thoughts and conclusion on what's going on something happened to the battery or it's defective. Btw we only use Samsung OEM cables and equipment at home and in the car while connected through Android auto. it's only working while being plugged in it's not charging all the way even though it's registering it's charge level while the device is on.
I need some help. For some reason, Whenever I Restart my phone, Either Manually or Letting it automatically do it, My phone keep restarting. It boots up, goes to the Lockscreen, I enter my pin and after 10 to 15 seconds, or just after Syncing Contacts, Goes back to the bootup screen, then back to the Lockscreen. It keeps doing this, and the only (temporary) fix I can do is Factory Resetting the phone within the 10 to 15 seconds I have, And starting over fresh.
It gets worse as, like I said, it's temporary. After I get back my stuff and everything, if I ever restart or even turn off my phone then back on again, it just does it all again. What can I do to fix this permanently? And what caused it?
2 things could be at fault here :
1. A faulty power button. Go to a server and check if you power button is faulty. Perhaps it gets stuck and its the one to blame for the entire problem.
2. A faulty ROM. Either flash the previous version of the Rom, update your rom to the latest or flash a custom rom.
JohnnyCross1991 said:
I need some help. For some reason, Whenever I Restart my phone, Either Manually or Letting it automatically do it, My phone keep restarting. It boots up, goes to the Lockscreen, I enter my pin and after 10 to 15 seconds, or just after Syncing Contacts, Goes back to the bootup screen, then back to the Lockscreen. It keeps doing this, and the only (temporary) fix I can do is Factory Resetting the phone within the 10 to 15 seconds I have, And starting over fresh.
It gets worse as, like I said, it's temporary. After I get back my stuff and everything, if I ever restart or even turn off my phone then back on again, it just does it all again. What can I do to fix this permanently? And what caused it?
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hello friend
I have the same problem. I've already reset to factory defaults but it's still giving the same error. I've already tried disabling the XOS Launcher and nothing either.
If you manage to fix this issue, post it here.
Try to remove your memory card before reboot.