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My phone crashes and doesn't boot without energy source

Hey guys !
I've a problem with my Nexus 5.
Since 1 month, it crashes totally randomly once a day : there is not a specific app or behavior or hour that makes it crash. The problem is I can't reboot my phone until I link it to an energy source (like an outlet, or an external battery) : it keeps crashing during the boot. After booting, the battery isn't even empty, so it's not totally a battery problem.
I tried changing my ROM to a stock ROM, I tried Kitkat, 5.0, 5.1, and it keeps crashing. I tried factory mode, reset too.
Any idea ? I already made a warranty post at Google, but I'm not ready to send my Nexus 5.
Thanks guys

[2016]Random Reboots on my ONE. Please help.

Later edit5: Tried to restore my nandroid backup and TWRP froze. Had to hard reboot the phone...
Later edit4: It started working. It f***** started working. Out of nowere. Last night, the last thing i tried was this: https://forums.oneplus.net/threads/fix-for-sudden-death-and-boot-loop.146107/
I rebooted the phone and it didn't work. I gave up.
This morning I turned it back on and ... surprise, surprise... it started working (optimizing apps and actually booting into cos12.1).
My happiness didn't last because as soon as the phone started updating some apps, it crashed, and entered a boot loop again. Good thing i managed to copy one of my previous backups.
Can someone explain this behavior?
Later edit3: my phone is still stuck in a bootloop. Neither roms are working.
Things I've tried:
- flash new roms
- erase/ flash persist
- flash color os
Nothing works!
Later edit2: while on cm13, i plugged it in to recharge. While connected to wall plug it did nothing(working fine, as it should be). As soon as i unplugged it started rebooting over and over again... a boot loop. This phone is starting to look like one of the biggest mistakes i ever made. I regret purchasing it.
Later edit: now it just turned off, and pressing the power button won't turn it back on. Had to press it for about 10 - 15 seconds. ANNOYING!
OP: I've been experiencing random reboots on my oneplus ONE since I've had it.
When i first got the phone, i was so excited about it and started flashing custom roms, just for fun and to see which one suites me. I messed up the phone (my camera wouldn't work anymore. All the roms gave me the same message"Camera has stopped working" ) and sent it back to warranty, here in my country, at the shop from which i've bought it. After two weeks they sent it back to me with the note "restored to factory settings". I've checked the "About" section and it was running cos12.1, 1 jan 2016 security patch, kernel 3.4.67.
So I've decided to stick with this rom because I didn't want to mess it up again. But, out of nowhere it rebooted. First i thought that it was an app that needed the phone to reboot. I didn't mind it. I've left my phone over the night and in the morning it was saying "enter pin" as it has rebooted.
Long story short, ever since it reboots at least 1 time a day, and it is getting really frustrating! Sometimes when i'm in an app, sometimes when it just lays around.
Reasons it rebooted:
- no reason, just siting and it rebooted
- opened waze app
- browsing chrome
- tried to connect to a saved wireless network, it rebooted and afterwards the network was not recognized anymore and had to retype the password
- no reason!!! just sitting!!
- fresh install of cos 12.1, i queued about 20 apps to install... it rebooted and continued installing after reboot.
- sometimes i heavily use it and it runs perfectly, but when i stop using the phone and lay it down it reboots. (this only happend one time)
Things I've tried:
- factory reset
- clear cache and dalvik cache
- power cicle the phone
- new rom
None of these worked.
Today I installed sultans CM13, with his 3.4.0 - sultan - caf kernel, hoping that my problems would disappear. (I installed TWRP 2.8.7.0.5, flashed the rom, cleared the cache, flashed the gapps, cleared the cache and reboot.)
It ran flawlessly. I've installed all my apps, played a little with it, configured it as I pleased and I've left it the table for about 15 minutes. When i picked it up, it rebooted(AGAIN!) out of nowhere.
What could it be? As I read through the forums i found out that a log with the exact problem is impossible to get because it gets deleted.
Could it be the wireless network? Could it be the sim card I am using or the phone modem? Could it be because of the launcher?
(for now, i've disabled my sim pin so when my phone reboots i don't miss phone calls if i don't notice it has rebooted)
Please help, as this problem is getting more and more frustrating...

Reboot log
Quickly after a reboot i reconnected the phone, opened cmd and typed adb logcat.
This is the log. 22:17 is the time when the phone rebooted so i extracted only that fragment of the log.
I am going to flash the stock cm13 nightly with the "stock" version of gapps. (until now i always flashed "nano").

[Completed] Need help with my S3. It gets stuck in bootloop all the time.

I bought my S3 I9300 (INTL) when it first came out. Since then, it has been working perfectly fine. I rooted it a year ago and installed cm10 at that time as well. Afterwards, I had also successfully switched back to stock rom via my nandbackup.
A week ago, I did a nand backup via CWM and then decided to install CM 13 nightly. After that I had no serious issues (just small issues such as data connection not automatically turning on. Had to do it from settings) so I didn't update either. Two days ago just when I needed my phone the most, it turns off suddenly. Every time I try to turn it on, it can't go past the CM boot logo. I then put my phone on charge. I turned it on and it worked while it was charging. At 88% i take off the plug and the same thing happens again (bootloop). I then plug the charger back on and restart after going to download mode (to stop the bootloop). It then shows a charge of 5 percent. I charge again then I decided to quickly to a factory reset as I was in a hurry. Then while I was in my car, I let it restore the backup from my sdcard1. However, I noticed that it said "failed to restore /data". I did another reset and cleared cache etc but everytime it would say either failed to restore /data or /system. Doing an advanced restore didn't work either. Then factory reset again and downloaded CM 11 more stable version. I moved it from my tab (which I downloaded it with) to my phone via sd card. However, it fails to install. At 20% it restarts my phone back in to bootloop but this time a samsung bootloop as I already did a reset. Now my phone is unusable and bootloops every time I try to turn it on. Further note, the charging icon shows the cm13 charging icon.
Right now: Downloading stock rom from a different country because can't find mine.

Hi,
Try posting your question here:
Galaxy S III Q&A, Help & Troubleshooting
The experts there may be able to help.
Good luck!

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.
Click to expand...
Click to collapse
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...

Question Stucked in bootloop

Hey,
I have got Xiaomi POCO X3 PRO NFC 8/256GB, most probably have android 11 MIUI 12.5.5 global, in EU. Been using automatic updatese. Please note, that I haven't flashed any custom software. Have been using vanilla OS since release and been updating it with automatic updates.
Suddenly my phone has entered bootloop state and I am not able to take it out of it since.
Latest action I have taken just before the problem started is that I connected my phone to charger during the game ( PGR) , while it was at around 40% charge. After short moment it has frozen and restarted the phone. Since then it has been constantly bootlooping with POCO icon and resetting again, turning off the screen and back to POCO icon - it has been for over 2 hours already. It doesn't feel that my power button is stuck.
Still can operate power + vol buttons reliably. I can access Fastboot and MIUI Recovery Menu 5.0, where I have 4 options:
1. Reboot - back to bootloop
2. Wipe data - haven't tried it yet
3. Connect to MIAssistant - TIL it is supposedly dead service?
4. Safemode - it brings me back to bootloop again
Tried to take out SIM and microsd, to no avail. Haven't tried to wipe out data until I try other solutions, to restore it, as I have some 2FA on it, which would be a pain to recover.
I haven't learned before around flashing and recovery for the last few years (only I have done it around android 4, 5 and 6). I would like request assistance - how to approach resolving this problem?
Currently I am reading on fastboot, which I believe might help me here, by connecting it to PC.
EDIT: Got around this https://xiaomiflashtool.com/tutorial/use-xiaomi-flash-tool and stock rom https://xiaomistockrom.com/xiaomi-poco-x3-pro , I believe it might work
EDIT #2: At 20.11.2022. At around end of october this issue started repeating out of nowhere. And then suddenly stop,
Then the phone bricked. Sent for warranty and just got it back.
Turns out that motherboard died and was the cause.

gol_galad said:
Hey,
I have got Xiaomi POCO X3 PRO NFC 8/256GB, most probably have android 11 MIUI 12.5.5 global, in EU. Been using automatic updatese. Please note, that I haven't flashed any custom software. Have been using vanilla OS since release and been updating it with automatic updates.
Suddenly my phone has entered bootloop state and I am not able to take it out of it since.
Latest action I have taken just before the problem started is that I connected my phone to charger during the game ( PGR) , while it was at around 40% charge. After short moment it has frozen and restarted the phone. Since then it has been constantly bootlooping with POCO icon and resetting again, turning off the screen and back to POCO icon - it has been for over 2 hours already. It doesn't feel that my power button is stuck.
Still can operate power + vol buttons reliably. I can access Fastboot and MIUI Recovery Menu 5.0, where I have 4 options:
1. Reboot - back to bootloop
2. Wipe data - haven't tried it yet
3. Connect to MIAssistant - TIL it is supposedly dead service?
4. Safemode - it brings me back to bootloop again
Tried to take out SIM and microsd, to no avail. Haven't tried to wipe out data until I try other solutions, to restore it, as I have some 2FA on it, which would be a pain to recover.
I haven't learned before around flashing and recovery for the last few years (only I have done it around android 4, 5 and 6). I would like request assistance - how to approach resolving this problem?
Currently I am reading on fastboot, which I believe might help me here, by connecting it to PC.
EDIT: Got around this https://xiaomiflashtool.com/tutorial/use-xiaomi-flash-tool and stock rom https://xiaomistockrom.com/xiaomi-poco-x3-pro , I believe it might work
Click to expand...
Click to collapse
https://forum.xda-developers.com/t/flash-tool-guide-use-xiaomi-flash-tool.4262425/

NOSS8 said:
https://forum.xda-developers.com/t/flash-tool-guide-use-xiaomi-flash-tool.4262425/
Click to expand...
Click to collapse
Thanks, will follow this to make back up and in case it occurs again.
Managed to resolve this problem by draining up my battery due to constant restarts(obviously can't pull out battery). After that happened, connected my phone to normal charger, juiced it up to 10% and phone started just fine.
I have tried to recreate this problem, however it didn't occur again.