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[Q] Restart loop(not bootloop) - really weird

Hey lads,
I got a really weird problem and I've tried nearly everything I can think of. I had EMUI 2.3(b121sp06) and I tried the online OTA update to b307 if I remember right(was automatically suggesting the update) and at the update screen it loaded to about 99% and then stopped. Said not to press power while on this screen but obviously it wasn't going to finish. So I reset the phone and it started the "recovery loop", so basically keep trying to apply the update. I had to flash CWM to break out and flashed the whole system by hand(recovery,system,boot,cache,cust and userdata img files) and it starts up but it keeps resetting and seemingly it's random. Android boots up, I don't touch the phone--> boom reset. Weird thing is it even does it in recovery.
If I really want to explain the problem it's like as if my finger got stuck on the power button(that naturally made me think that the button might be f*cked), but booting into fastboot and not having resets cleared my suspicion. What I also noticed is that every time it boots up it doesn't recognize the sim card and I have no signal or whatsoever.
Tried multi tool unbricking method -> doesn't work
Tried factory reset from stock recovery(had to be fast so it doesn't reset before) ->doesn't work
Tried wiping dalvik cache and factory reset from CWM ->doesn't work
Tried killing battery by letting it keep resetting -> battery drained, reset loop stopped ->put the phone on charger->reset loop started again
I have no f*cking clue how can I get out of this, will keep trying though. Any help is appreciated, thank you!

Hi
Did you try to remove the Sd Card ? Honor 6 reboot is often due to faulty SD Card.
Which model do you have ? L04 ?
B307 upgrade sure ?
Seb

Yes, that was my first idea, still does it though. I have the L02 and I'm not positive it was b307, but it started with 3, could be b303 if there is one.

I don't know for L02 but for L04 there is a Full ROM that you can flash with the three buttons method. (Vol+,Vol-, power and put the ROM in /dload folder on the SD card).
Maybe there is such thing for L02 ?

There is, but as I said the phone restarts even in recovery. It's like the phone restarts every 30 secs except for fastboot.

if it's not SD card or internal flash problem so, it seems to be hardware related to me (

Would make sense but it occurred only after I tried OTA. Would be really surprised if that killed that hardware :-/

xXPhoenixXx said:
Would make sense but it occurred only after I tried OTA. Would be really surprised if that killed that hardware :-/
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Click to collapse
Have u fixed the issue yet????

kamalnath93 said:
Have u fixed the issue yet????
Click to expand...
Click to collapse
Unfortunately not, I'm out of ideas, trying to negotiate with the seller to sort something out, I think the phone is beyond saving

Same thing happened with me. Don't have any solution. Have you fixed it?

xXPhoenixXx said:
Hey lads,
I got a really weird problem and I've tried nearly everything I can think of. I had EMUI 2.3(b121sp06) and I tried the online OTA update to b307 if I remember right(was automatically suggesting the update) and at the update screen it loaded to about 99% and then stopped. Said not to press power while on this screen but obviously it wasn't going to finish. So I reset the phone and it started the "recovery loop", so basically keep trying to apply the update. I had to flash CWM to break out and flashed the whole system by hand(recovery,system,boot,cache,cust and userdata img files) and it starts up but it keeps resetting and seemingly it's random. Android boots up, I don't touch the phone--> boom reset. Weird thing is it even does it in recovery.
If I really want to explain the problem it's like as if my finger got stuck on the power button(that naturally made me think that the button might be f*cked), but booting into fastboot and not having resets cleared my suspicion. What I also noticed is that every time it boots up it doesn't recognize the sim card and I have no signal or whatsoever.
Tried multi tool unbricking method -> doesn't work
Tried factory reset from stock recovery(had to be fast so it doesn't reset before) ->doesn't work
Tried wiping dalvik cache and factory reset from CWM ->doesn't work
Tried killing battery by letting it keep resetting -> battery drained, reset loop stopped ->put the phone on charger->reset loop started again
I have no f*cking clue how can I get out of this, will keep trying though. Any help is appreciated, thank you!
Click to expand...
Click to collapse
Its might be a battery problem Or power flex cable. Try to turn on the phone during charge

guys im facing the same problem now... waiting for any solutions

I have tried stop & uninstall some app
I've tried as quickly as I can when the phone (nokia x) is on, then I stop> uninstall I consider potentially cause this problem (facebook, whatsapp, uc browser) and then it managed to prevent the continuous restarts. but problems arise even though the application had me uninstall and then I restart the phone. and it is back again, I uninstalled the app that has remained with the error settings and restart repeatedly. who knows what else : '(

xXPhoenixXx said:
Hey lads,
I got a really weird problem and I've tried nearly everything I can think of. I had EMUI 2.3(b121sp06) and I tried the online OTA update to b307 if I remember right(was automatically suggesting the update) and at the update screen it loaded to about 99% and then stopped. Said not to press power while on this screen but obviously it wasn't going to finish. So I reset the phone and it started the "recovery loop", so basically keep trying to apply the update. I had to flash CWM to break out and flashed the whole system by hand(recovery,system,boot,cache,cust and userdata img files) and it starts up but it keeps resetting and seemingly it's random. Android boots up, I don't touch the phone--> boom reset. Weird thing is it even does it in recovery.
If I really want to explain the problem it's like as if my finger got stuck on the power button(that naturally made me think that the button might be f*cked), but booting into fastboot and not having resets cleared my suspicion. What I also noticed is that every time it boots up it doesn't recognize the sim card and I have no signal or whatsoever.
Tried multi tool unbricking method -> doesn't work
Tried factory reset from stock recovery(had to be fast so it doesn't reset before) ->doesn't work
Tried wiping dalvik cache and factory reset from CWM ->doesn't work
Tried killing battery by letting it keep resetting -> battery drained, reset loop stopped ->put the phone on charger->reset loop started again
I have no f*cking clue how can I get out of this, will keep trying though. Any help is appreciated, thank you!
Click to expand...
Click to collapse
Hey I tried to root my phone and its stuck in the same restart loop. I am trying to install some roms, CM or stock. U also try and let me know if it works.

Kuber.ksp said:
Hey I tried to root my phone and its stuck in the same restart loop. I am trying to install some roms, CM or stock. U also try and let me know if it works.
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Click to collapse
my phone is working only on charhing.. pufffff

snrtrt said:
my phone is working only on charhing.. pufffff
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Click to collapse
Did you follow the guide here?
Sent from my Honor 8 using XDA Labs

In the past my battery lost it's endurance pretty much. Furthermore I've read that a defective battery causes lots of weird behaviours on our Honor 6, which was the same to mine.
In my case a replacement of the battery worked well, to get my Honor 6 back to life:
https://www.youtube.com/watch?v=ceyzXavxFAw
It's not that difficult and lasts approx. 30-45 mins. Spare Batteries are available for 6 - 10 bucks on ebay or directly from the chinese internet stores.

Borg666 said:
In the past my battery lost it's endurance pretty much. Furthermore I've read that a defective battery causes lots of weird behaviours on our Honor 6, which was the same to mine.
In my case a replacement of the battery worked well, to get my Honor 6 back to life:
It's not that difficult and lasts approx. 30-45 mins. Spare Batteries are available for 6 - 10 bucks on ebay or directly from the chinese internet stores.
Click to expand...
Click to collapse
It's really important that we use original chargers for the health of our device.

Softbricked G Flex 2 freezing at start. Boots but unable to start.

Hi everyone.
I have an LG G Flex 2 (H955) that suddenly went on a fritz. It used to be rooted fine, it was on default firmware, 10 something (wouldn't OTA due to rooting), no issues, but as I am a heavy user, enabled multiuser, had a bunch of apps installed and running it started to slow down on occasion, but nothing unexpected. Anyway, few days back, it shut down on its own while I was typing a message and the phone entered bootloop - on it's own. I decided to cut my losses and did the factory reset the hardware way, it booted up, did the "optimizing apps thing", got to welcome screen and - froze - then just restarted. It's been doing that ever since. Sometimes it boots all the way and then freezes and starts, sometimes it gets stuck on LG logo, sometimes even boots and works for a minute or two but still freezes and reboots.
I can access Download mode, and HW factory reset. I flashed several stock ROMs I found with LG flash tool 2014. It goes without a hitch, boots up, again gets to the welcome screen and reboots. I tried to to the dd cmd way to flash the only system.img I found online, but I get a security error at boot. It gets fixed when I flash the stock ROM again with flash tool. I am at my wits end. I have no warranty, I have no backed up original dump. With my limited knowledge I have somewhat of a hunch that one of the partitions might be corrupted as it boots most of the time but as it tries to write or read something from somewhere (hence showing the Welcome screen) it dies.
Would anyone have a suggestion as to what I might try next, or had a similar experience?
Thank you all very much in advance for any help.

Have you tried this tool with the appropriate image?
http://forum.xda-developers.com/g-flex2/general/p-restore-recovery-to-stock-tool-h950-t3171550

Hi and thanks for the tip. However, no, I have not tried this method as my device is H955, International version, and I am not keen on messing up the phone worse then it already is.
I will look it up in more detail, but as far as I can see it only pertains to the H950 (ATT version)
Edit: I looked it up in detail, and the developer removed the H955 support as there is a KDZ for it and he claims the .kdz is a much better option - however - .kdz does not work for me. It flashes the rom all right, both in Normal and CSE Flash modes, but the problem persists. Turns on (if I'm lucky), freezes, reboots and so on.

D'oh, didn't see the H955 part. :-|
Sorry to hear you are still stuck, can't offer much more unfortunately.

I know one of the flashing modes does a reset, but maybe a reset after the flash might help.. i think it's, from powred off, down plus power until the lg logo then release and then hold power on its own until you get to a recovery screen where you can reset.
you probably already tried that I'm guessing though. taken memory card out if you're using one?

thepktrckt said:
D'oh, didn't see the H955 part. :-|
Sorry to hear you are still stuck, can't offer much more unfortunately.
Click to expand...
Click to collapse
Don't worry about it, you tried to help, and I appreciate it

meangreenie said:
I know one of the flashing modes does a reset, but maybe a reset after the flash might help.. i think it's, from powred off, down plus power until the lg logo then release and then hold power on its own until you get to a recovery screen where you can reset.
you probably already tried that I'm guessing though. taken memory card out if you're using one?
Click to expand...
Click to collapse
Hi and thanks for yet another tip. However, you guessed right - I tried everything - reset from the recovery, before the flash, after the flash, in the middle of flash, with memory card, without memory card, tons of times - you name it, I've tried it. And still, it boots up (sometimes, though), freezes and go bye-bye. I'm completely out of ideas. If I could somehow rebuild partitions from Download mode, or use ADB, or push some image I found and flash it directly, but there is no way to push files to phone in Download mode (and 5.1.1. disabled external memory, so that is out of the option too).
It seems I'm stuck for now. I'm wondering if the repair guys have some tricks up their sleeves, perhaps with those hardware boxes, jtag something or other...

im on same boat with h955p, any solution?

the battery is the problem 100%. i had the same problem and i managed to fix it with buying a new battery and replacing it. 10$ on aliexpress plus you get the tools and it is really easy to replace.

hi. i was stuck in this situation. you can reflash the original stock rom back from LG UP software. at me this was the problem. my friend have a korean model and at him the 4g data connection was the problem...i was on the update of the marshmellow and freeze and reboot...factory reset didn't do something cool and keeps rebooting...but i was smart and lucky and my brain was thinking at the reflash of the phone...so i was to the reflash so my phone was completely and fully functional...no freeze , no reboot...and look for the v20a italy firmware (stock rom)...i say this because this v20a italy rom is so f***in stable and no battery drain...better than other stock rom marshmellow. Thanks me later.

Galaxy S6 - freezing and rebooting 50+ times a day

I've got a Vodafone UK version SM-G920F that has recently started to freeze, crash and reboot constantly.
I managed to back up my data and perform a factory reset from the Setting page, but it crashed 10+ times during the install process (would freeze at various different stages, either rebooting on its own, or requiring a Vol Down+Power reset)
I'm now on a fresh install, but it's still rebooting constantly. I managed to use it like normal for an hour today, but right now it's just rebooted 3 times and won't even get past the Samsung loading screen without several Vol Down+Power resets.
What other options do I have? And is anyone aware of a known hardware issue that could cause this?
I was considering flashing a different ROM, but I'm scared it would reboot during the process and corrupt something...

robjg said:
I've got a Vodafone UK version SM-G920F that has recently started to freeze, crash and reboot constantly.
I managed to back up my data and perform a factory reset from the Setting page, but it crashed 10+ times during the install process (would freeze at various different stages, either rebooting on its own, or requiring a Vol Down+Power reset)
I'm now on a fresh install, but it's still rebooting constantly. I managed to use it like normal for an hour today, but right now it's just rebooted 3 times and won't even get past the Samsung loading screen without several Vol Down+Power resets.
What other options do I have? And is anyone aware of a known hardware issue that could cause this?
I was considering flashing a different ROM, but I'm scared it would reboot during the process and corrupt something...
Click to expand...
Click to collapse
Maybe a battery issue?

a friend just gave me his very same model phone with the very same issues.. if I find out anything I'll tell you here, or if you solve it first please write down what you did.

Thanks Vibbuz.
I've been trying to download a stock firmware to flash via Odin, but download speeds from Updato are really bad.

So I managed to flash a firmware after installing Odin on a Windows laptop (painful trying to get it to work on my Mac)
Firmware installed OK, but after boot I was getting a constant "com.sec.epdg" pop-up box that wouldn't let me use the phone at all. Not sure if that's due to the tsar3000 firmware?
Wiped the cache and did a factory reset after booting into recovery, and now it's stuck in a boot-loop again (95% of the time it hangs at the Samsung logo animation)

Just tried using SamFirm v0.3.6 to find the correct file. Downloaded a 4gb file, but several attempts to extract only gives BL, CP, CSC files but no AP (throws up an Unknown Error during process).
So still stumped!

Yet another update. Left Updato running overnight and downloaded a firmware.
Flashed it with Odin, claims to have succeeded but phone then reboots and hangs at "Erasing" stage (Android logo is spinning, then stops)
I'm starting to think it's pretty broken...

I've been having this exact same issue since June. If your phone happens to boot try activating power saving mode (to reduce cpu speed) as soon as possible.
It seems that doing that diminished the frequency in which my phone rebooted. If it also helps you it might be a faulty battery that can't provide enough voltage. (I'm not 100% sure on this part though, just thought of it because of the apple batteries drama)
Please post your results! Looks like a lot of people are affected by this and it would be great if we could find the cause of the problem.

I just read your thread actually! Sounds very similar to mine.
I've got nowhere. I don't think it's hard-bricked as I can still access Odin mode on the phone, and sometimes boots to Recovery, but it freezes and various different points and is currently unusable (either freezes at Samsung logo, "Erasing" part after installing firmware, or once it started to run though new device setup then froze).
Went ahead and bought an S8, but still want to fix the S6!

robjg said:
I've got a Vodafone UK version SM-G920F that has recently started to freeze, crash and reboot constantly.
I managed to back up my data and perform a factory reset from the Setting page, but it crashed 10+ times during the install process (would freeze at various different stages, either rebooting on its own, or requiring a Vol Down+Power reset)
I'm now on a fresh install, but it's still rebooting constantly. I managed to use it like normal for an hour today, but right now it's just rebooted 3 times and won't even get past the Samsung loading screen without several Vol Down+Power resets.
What other options do I have? And is anyone aware of a known hardware issue that could cause this?
I was considering flashing a different ROM, but I'm scared it would reboot during the process and corrupt something...
Click to expand...
Click to collapse
Does it have twrp? Try a non stock ROM and kernel

So did anyone manage to find an issue in this rebooting. I am having the same issue.

damir_nis said:
So did anyone manage to find an issue in this rebooting. I am having the same issue.
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Hi I have same Problem I send the my s6 for repairmen that Saied me this problem related to mobile Hard drive.
I didn't believe it and try some official rom and a rom from Philippine GLB solve my problem for 3 M/o but now developed as same problem whitout any successful rom installation.
I think this problem from incompatibility google play store version to my rom. please flash a custom rom without google apps and immediately after installation turned off data and Wi-Fi internet after 2 day whit sim card whit out any change in setting can use it.

Hello,
anyone found some kind of solution? Happened to me also - freezing, restarts and then my S6 stopped working.. Sometimes I can boot to recovery menu, sometimes it boots up to android (and then freezes again), but the chances are almost non existing. Service man told me the same thing as @ghasemzm - eMMC failure. Yes, it is completely possible, but i don't wanna believe it, because they only tried to reflash the rom. I've made some "google research" and found that there were some issues in power IC on S6/S6E. Could this be related to it?

ghasemzm said:
Hi I have same Problem I send the my s6 for repairmen that Saied me this problem related to mobile Hard drive.
I didn't believe it and try some official rom and a rom from Philippine GLB solve my problem for 3 M/o but now developed as same problem whitout any successful rom installation.
I think this problem from incompatibility google play store version to my rom. please flash a custom rom without google apps and immediately after installation turned off data and Wi-Fi internet after 2 day whit sim card whit out any change in setting can use it.
Click to expand...
Click to collapse
Will test the theory and let the group know.

So i have installed philipines latest update 6.0.1 i think with PIT file provided on Sammobile.
I have tested it for a day with normal ussage like i set up every other phone and it still continued restarting.
Figured out let me test with no google account signed in and the phone is working perfectly. For a full day.
So i dont know what the problem is but i will try again with google account tomorrow for a day see what happens.
After that will install 7.0.1 uk update with PIT file for it and test with that.

I have the same problem and I am quite sure that it is the mobile hard drive.
I tried to use F2FS but didn't find a working rom for that.
Samsung refused repair because of root.... Never Samsung again!

same issues here - any solutions found? My best guess is hardware fault...

Debugging J7 Prime Restart issue

Pardon for a long story but someone gave this Samsung J7 Prime(SM-G610F) to me with an issue "An Error Has Occurred While Updating The Device Software". So I gave Samsung Smart Switch a try sadly they removed the Initialize option and old version don't seam to do what it suppose to do so I wen to a traditional Odin flashing. I then look for a stock rom for the phone that I think is the right one. Started with android 6 MM region pakistan and flashing went well. I was able to use it for a good hour or two until I notice it restarted by it self, then it keeps doing it 10-20 seconds after booting up. I though its the firmware I'm using so I went and look for Oreo version this time I region india (I don't know if region matters). So I flashed it again and tested the device again. I'm still able to use it for a good while till it restarted again. I then keep testing it to see what may be causing the problem. I notice that when the WIFI is on it just crash the phone to reboot so as soon as the phone reboots I turned the wifi off and it didn't crash anymore. I then factory reset the phone cleared everything, wipe cache then installed benchmark tools first. Thing I notice is it crashes when Google Play store is trying to install or download something. I tested it a couple of times to see when it crash and it does crash when downloading or installing something. I was still able to install 3Dmark and run it with wifi off. It completed the test without crashing so it couldn't the processor issue. I then look for another rom and tried flashing it. This time I had issue with it failing at system.img even if I use recent rom that worked. I then keep trying till flashing TWRP worked and flashing the rest of the rom is fine again.
What bothers me is why doesn't it crash during the first couple of hours. I've search similar issues and they say it may have been and app issue. I've already disabled bunch of app but nothing changed. Run the phone in safe mode but this time instead of crashing and rebooting right away it freezes for a few seconds. I suspect if google play or something being an issue since I've tried disabling it and it didn't crash for a couple of hours. Looked for allot of related thread but none of them seam to solve my problem.
I suspect either its the rom that I'm using and it can only be fixed by using the original rom, or its having a memory issue but don't know how to pin point it. Anyone can suggest on how I can debug this? I'm used to debugging things in real time and my knowledge with android is a quite slim but as a programming understanding the errors won't be a problem. I hope.
Edit: Hmm. Does copying kernel log with TWRP work or the kernel logs get overwritten every time the phone reboots? Because I see the kernet logs but don't see anything failing except for something saying SHUTDOWN but I don't think thats it. :S

Still no reply. :S I think its /system dismounting it self while doing a write operation. but it doesn't trigger until a certain amount of time after the phone is flashed or factory reset. I have to go to recovery and mount system back but that only happens on marshmallow. over version it remounts it self after the random reboot. After factory reset I'm able to install COD mobile and play a couple of match. after a long while it just decides to reboot.
I also tried z3x and after reading PIT from phone OK. the phone just reboots and flashing completes without it doing any flashing.

J700m rebooting problem

yo guys!
So, months ago I flashed a custom ROM on my j700m, it was EnigmaUX, it worked fine for quite a long time, but I had a issue with it that bothered me: sometimes, when the phone rebooted, it just wont accept my pattern and kept saying it was wrong until I rebooted the phone again. With that in mind, I decided to flash a new ROM to try fixing this problem, I flashed the NOUGAT 7.1.1 - SE 8.5 & GAMING and along with the previous issue I had, I also got a new one: my phone kept rebooting randomly, sometimes the system wont even start back, I had to remove the battery in order to start, it's like the phone reboots in the middle of the start process. My next attempt was to flash the stock rom, which is: J700MUBU2BRC2, and the problem is still happening. The pattern bug stills happens too, that's the weird thing, I removed the ROM and I still have the same glitch... like it was not completely removed.
Does anyone have any ideia what's causing that?