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Was running stock ROM rooted and everything was fine until I restarted the phone today. Started to boot loop and hasn't stopped. I've tried restoring backups, installing a ROM fresh and nothing works, just endless boot loops.
What else can I do?
Edit: Did the second option in the link below and it worked like a charm:
http://forum.xda-developers.com/showthread.php?p=46205598
re: boot loop
themichael said:
Was running stock ROM rooted and everything was fine until I restarted the phone today. Started to boot loop and hasn't stopped. I've tried restoring backups, installing a ROM fresh and nothing works, just endless boot loops.
What else can I do?
Click to expand...
Click to collapse
Have you tried to go into recovery and did a "Factory Reset" yet?
That usually works.
Good luck!
Misterjunky said:
Have you tried to go into recovery and did a "Factory Reset" yet?
That usually works.
Good luck!
Click to expand...
Click to collapse
Yeah, reinstalled entire ROMs and no luck.
themichael said:
Was running stock ROM rooted and everything was fine until I restarted the phone today. Started to boot loop and hasn't stopped. I've tried restoring backups, installing a ROM fresh and nothing works, just endless boot loops.
What else can I do?
Click to expand...
Click to collapse
Sounds like she's bricked unfortunately. Might have put an incorrect kernal or flashing something that wasn't supposed to. I bought a bestbuy warranty and it just saved me, because I made an incorrect flash. It was hard bricked. Nothing I did would fix it. Improper kernals can fry CPUs, and if you're odining your stock firmware from sammobile and it still is looping, chances are that's what's happened.
themichael said:
Was running stock ROM rooted and everything was fine until I restarted the phone today. Started to boot loop and hasn't stopped. I've tried restoring backups, installing a ROM fresh and nothing works, just endless boot loops.
What else can I do?
Click to expand...
Click to collapse
My Note 3 suffered a few random boot loops out of the box. Then it ended up in sheer boot loop hell soon after it was rooted. At first, I too thought I had done something wrong until seeing all the posts about unchecking "Always Allow Scanning".
After the phone spent a solid 12 hours rebooting over and over, never getting past the T-Mo splash screen, it finally came back up. I unchecked "Always Allow Scanning" in the WiFi settings, and it's been fine ever since.
It would get quite hot during the boot loops, almost too hot to touch, while draining the battery very quickly. I plugged it in and set it on the fan in the top of my computer tower to keep it from frying itself.
themichael said:
Was running stock ROM rooted and everything was fine until I restarted the phone today. Started to boot loop and hasn't stopped. I've tried restoring backups, installing a ROM fresh and nothing works, just endless boot loops.
What else can I do?
Click to expand...
Click to collapse
Is your Knox flag already tripped? If so, I have a guide somewhere in here...
http://forum.xda-developers.com/showthread.php?t=2545009
I had same issue. Heimdall fixed it. Try it out, let me know. I have a lot of downloads, but no feedback. I need to know what other sorts of issues it can recover...
Recommendation though is to try the Bootloop recovery first just to get into a good recovery position, then wipe pretty much everything, and perform the stock restore.
When the stock restore hits, it runs its own little recovery script automatically fixing bootloop issues. You can root and do whatever else you want after that... Good luck.
try this it work for me
http://forum.xda-developers.com/showthread.php?p=46205598
conganhthuc said:
try this it work for me
http://forum.xda-developers.com/showthread.php?p=46205598
Click to expand...
Click to collapse
This worked! tried the second option since it was easiest and it saved my phone! Thank you so much!
I've recently flashed my H811 with cm 13 build cm-13.0-20160724.
I have also tried other build and it always get stuck in "starting apps".
I can recover to the stock rom with the backup and it does work fine.
bernardog said:
I've recently flashed my H811 with cm 13 build cm-13.0-20160724.
I have also tried other build and it always get stuck in "starting apps".
I can recover to the stock rom with the backup and it does work fine.
Click to expand...
Click to collapse
Try going into recovery and wiping dalvik cache and cache
gillim74 said:
Try going into recovery and wiping dalvik cache and cache
Click to expand...
Click to collapse
I've did this multiple times. I have also tried the last 3 builds before the one of Jul 24.
No success
bernardog said:
I've did this multiple times. I have also tried the last 3 builds before the one of Jul 24.
No success
Click to expand...
Click to collapse
Try doing right after you flash the rom and gapps that worked for me
gillim74 said:
Try doing right after you flash the rom and gapps that worked for me
Click to expand...
Click to collapse
It worked for the starting apps message but then it got stuck on "finishing boot" instead.
After a few minutes it reboots by itself and then get stuck on the cyanogen logo.
bernardog said:
It worked for the starting apps message but then it got stuck on "finishing boot" instead.
After a few minutes it reboots by itself and then get stuck on the cyanogen logo.
Click to expand...
Click to collapse
What model phone do you have
gillim74 said:
what model phone do you have
Click to expand...
Click to collapse
lg g4 h811
bernardog said:
lg g4 h811
Click to expand...
Click to collapse
flash stock firmware... if it bootloops then you got bootloop issue. and you have bootloader unlocked that means warranty void... can you try relocking the bootlolader and make video.?
raptorddd said:
flash stock firmware... if it bootloops then you got bootloop issue. and you have bootloader unlocked that means warranty void... can you try relocking the bootlolader and make video.?
Click to expand...
Click to collapse
As I've said, I can recover it to the backup and successfully boot the cellphone. I bought it after this issue and it's serial number was not affected.
It is not "boot looping" also, it is just like this forever.
Again, I have reflashed the stock firmware many times and it works fine.
I think that it started after I've flashed a radio. How can I undo it?
bernardog said:
As I've said, I can recover it to the backup and successfully boot the cellphone. I bought it after this issue and it's serial number was not affected.
It is not "boot looping" also, it is just like this forever.
Again, I have reflashed the stock firmware many times and it works fine.
I think that it started after I've flashed a radio. How can I undo it?
Click to expand...
Click to collapse
i see then it must be something you flashed.. i have never been on twrp on G4.. i remeber on G2 not booting due to different bootstacks... i dont think thers different bootstacks on G4..... wouldnt flashing stock firmware fix it . if you do it LGUP refurbished?
I've tried to flash one of the roms based on the LG one and it keep showing errors for all LG apps.
I cannot open camera or even set a wifi.
bernardog said:
I've tried to flash one of the roms based on the LG one and it keep showing errors for all LG apps.
I cannot open camera or even set a wifi.
Click to expand...
Click to collapse
what version of android you have? were you on MM 20I did you update to 20o?
am just mentioning this as i heard people having problems updating from 20i to 20o. i think the fix is to refurbished LGUP with 20o if thats the case.. they said camera problems and no sound ...
raptorddd said:
i see then it must be something you flashed.. i have never been on twrp on G4.. i remeber on G2 not booting due to different bootstacks... i dont think thers different bootstacks on G4..... wouldnt flashing stock firmware fix it . if you do it LGUP refurbished?
Click to expand...
Click to collapse
same here. iam stuck too. cannot get it back started at all.
indianx said:
same here. iam stuck too. cannot get it back started at all.
Click to expand...
Click to collapse
does it shows al qualcomm 9008 brick.? i think there a fix for h811.
raptorddd said:
does it shows al qualcomm 9008 brick.? i think there a fix for h811.
Click to expand...
Click to collapse
what do you mean show qualcomm. Its just stuck after a while it reboots.
Same issue here. I updated h811 to latest cm13 nightly, booted fine for first time. Then I reflashed custom kernel and that's all she wrote. Keeps getting stuck at starting apps after in optimizes everything. The only thing works is flashing a stock image, then it boots. Flashing any CM yields same results, gets stuck. Even restoring a backup after I wipe entire phone, still gets stuck. Can't figure it out.
indianx said:
what do you mean show qualcomm. Its just stuck after a while it reboots.
Click to expand...
Click to collapse
if its hard brick it wont do a thing... when you connect phone what does it says in device manager.
/
---------- Post added at 09:30 PM ---------- Previous post was at 09:27 PM ----------
malahhaor said:
Same issue here. I updated h811 to latest cm13 nightly, booted fine for first time. Then I reflashed custom kernel and that's all she wrote. Keeps getting stuck at starting apps after in optimizes everything. The only thing works is flashing a stock image, then it boots. Flashing any CM yields same results, gets stuck. Even restoring a backup after I wipe entire phone, still gets stuck. Can't figure it out.
Click to expand...
Click to collapse
try another rom.. or build.. if you are on h811 i heard that beign on 20o works better ive never flashed cm or aosp on mine.. so if it flashes ok with stock and not cm . theres something worng bad download bad rom or update to 20o. note going into 20o you cant downgrade anymore..
I had the same problem. I resolved it by removing sim card and flash the rom again. It can be a sim card compatibility issue.
Hi.
I have a problem with my D855. My phone is rooted and runs the fulmics ROM. Everything was working fine, , on Fulmics 5.3, except than one day, I was using my phone normally and then it crashed. I saw the phone rebooting, but for some reason it got stuck. The phone tried to boot unsuccessfully until the "firmware update" went through, after what it reboots again (unsuccessfully) and so on.
At that time, I was able to access twrp, do some backup, and flash properly with a downgraded version of fulmics (from 5.3 to 4.1).
It was able to boot again and use my phone like before. Yet, after one month of usage, the same problem happened on version 4.1. The phone crashed and now cannot boot.
Any idea of where it is coming from? Should I go back to stock? Should I contact customer service?
What did you do before the phone crashes ?
I think you probably should flash the stock ROM and wait for an other crash... or not.
Jb-kun said:
What did you do before the phone crashes ?
I think you probably should flash the stock ROM and wait for an other crash... or not.
Click to expand...
Click to collapse
I haven't done anything special. I think that the first time I was playing on candy crush. The second time I was just looking at pictures in my gallery.
I was using the ROM without any tweaks or extra modules such as Xposed. Just regular use.
Update on my situation: I switched back to stock ROM and it seems to work OK for now (it has been 4 days). So I will wait and see if new problems happen. By the way, it was extremely difficult for me to get back to Stock directly from fulmics ROM. I tried several methods that I have found on xda based on LGUP or LG Flash tool without success. For some reason I was not able to connect the phone to my PC in download mode.
The only way that I found was to use a nandroid backup that I did just after rooting the phone and that was based on stock ROM.
shewshain said:
I haven't done anything special. I think that the first time I was playing on candy crush. The second time I was just looking at pictures in my gallery.
I was using the ROM without any tweaks or extra modules such as Xposed. Just regular use.
Update on my situation: I switched back to stock ROM and it seems to work OK for now (it has been 4 days). So I will wait and see if new problems happen. By the way, it was extremely difficult for me to get back to Stock directly from fulmics ROM. I tried several methods that I have found on xda based on LGUP or LG Flash tool without success. For some reason I was not able to connect the phone to my PC in download mode.
The only way that I found was to use a nandroid backup that I did just after rooting the phone and that was based on stock ROM.
Click to expand...
Click to collapse
You can also use the Stock rom flashable from twrp. So you can wipe the system partition and get a "better situation" than a nandroid backup that should be with an old version.
Or use this that has also root and other improvements.
shewshain said:
Hi.
I have a problem with my D855. My phone is rooted and runs the fulmics ROM. Everything was working fine, , on Fulmics 5.3, except than one day, I was using my phone normally and then it crashed. I saw the phone rebooting, but for some reason it got stuck. The phone tried to boot unsuccessfully until the "firmware update" went through, after what it reboots again (unsuccessfully) and so on.
At that time, I was able to access twrp, do some backup, and flash properly with a downgraded version of fulmics (from 5.3 to 4.1).
It was able to boot again and use my phone like before. Yet, after one month of usage, the same problem happened on version 4.1. The phone crashed and now cannot boot.
Any idea of where it is coming from? Should I go back to stock? Should I contact customer service?
Click to expand...
Click to collapse
Same problem here. Normal usage suddenly started to reboot and now it's stuck in boot loop
Coming from Fulmics too - stopped working one fine day.
Now, continues to boot-loop at the initial LG screen. Trying to get into the recovery shows me the the 'Factory Reset' screen, but beyond that leads to boot-loops again. Even the Download mode loops!
I'm at my wits end without a solution in sight.
Blysterk said:
You can also use the Stock rom flashable from twrp. So you can wipe the system partition and get a "better situation" than a nandroid backup that should be with an old version.
Or use this that has also root and other improvements.
Click to expand...
Click to collapse
Thank you for this advice. I was able to update my stock ROM after the Nandroid backup through LGUP, but your method would have been faster.
But anyway, I am waiting to see if I am stuck with bootloops again, using non-root stock version, so I can send it to customer service if this happen again.
AhmadAlmousa said:
Same problem here. Normal usage suddenly started to reboot and now it's stuck in boot loop
Click to expand...
Click to collapse
abourdeau said:
I have the exact same problem, I even bought a second battery with no success.
Click to expand...
Click to collapse
Are you using Fulmics ROM as well? Can you have access to TWRP? I was able to connect to a PC in the recovery mode and to transfer files before flashing, in case you need some basic backup...
prakhargr8 said:
Coming from Fulmics too - stopped working one fine day.
Now, continues to boot-loop at the initial LG screen. Trying to get into the recovery shows me the the 'Factory Reset' screen, but beyond that leads to boot-loops again. Even the Download mode loops!
I'm at my wits end without a solution in sight.
Click to expand...
Click to collapse
Silly question, but are you sure that you selected "Yes" when the screen asks you about factory reset? you have to press "volume down" and the "power button", since the default answer is no.
shewshain said:
Silly question, but are you sure that you selected "Yes" when the screen asks you about factory reset? you have to press "volume down" and the "power button", since the default answer is no.
Click to expand...
Click to collapse
Yes, of course I was able to access TWRP successfully earlier.
Curiously enough, the phone boot-loops in regular startup, Download mode and trying to get to recovery. However, it doesn't restart itself and fall into a loop, while on the Factory Reset menu. Am I correct in assuming that the battery could not be the root cause of the overall problem? Because if it was, it would likely loop even on this Factory Reset menu as well as far as I understand.
Unfortunately, the phone restarts as soon as it lands in the Download mode so I cannot even restore to stock.
EDIT: Okay, weirdly enough it just booted and reached the homescreen before restarting again. What I did was let it charge to a 100% and tried booting while plugged in. Could it be the battery after all? Though this exact set of steps hasn't been helpful before.
Hi,
My H815 always suffered from this problem: http://forum.xda-developers.com/g4/help/fastboot-download-mode-problem-t3466649 - the only way I could have fastboot was from an adb shell.
Well, that was not a problem until today: CM14's nightly broke (booting just loops at the moving logo) and now I have no way to go back to fastboot. And if I try the recovery mode, I just have a blurry circle saying "erasing" for a few seconds, then a looping CM logo.
Anyone has a way out of this mess ?
bestouff said:
Hi,
My H815 always suffered from this problem: http://forum.xda-developers.com/g4/help/fastboot-download-mode-problem-t3466649 - the only way I could have fastboot was from an adb shell.
Well, that was not a problem until today: CM14's nightly broke (booting just loops at the moving logo) and now I have no way to go back to fastboot. And if I try the recovery mode, I just have a blurry circle saying "erasing" for a few seconds, then a looping CM logo.
Anyone has a way out of this mess ?
Click to expand...
Click to collapse
When you say you try the recovery mode how do you try to get into it? Btw do you have twrp installed?
Same thing happened to me, tried to install, just got put straight back in to TWRP after boot. Tried installing a stock ROM, CM ROM & using LG Bridge to recover, to no avail. Help appreciated, (i'm assuming LGUP is going to come up a lot)
Tycoon282 said:
Same thing happened to me, tried to install, just got put straight back in to TWRP after boot. Tried installing a stock ROM, CM ROM & using LG Bridge to recover, to no avail. Help appreciated, (i'm assuming LGUP is going to come up a lot)
Click to expand...
Click to collapse
The OP has another issue pls do not hijack.
steadfasterX said:
The OP has another issue pls do not hijack.
Click to expand...
Click to collapse
Sorry, it's nearly the same issue though, CM14.1 broke phones today.
Today's update broke mine as well. Looking for solutions. Will follow your thread and progress.
Same for me. Tried download mode with lgup to flash stock which worked once - but I kind of bricked it again by trying to install cm14.1 again. Then i tried to go back to stock using lgup again, but now lgup it just crashes. The phone now goes automatically to download mode after turning it on, the progress bar stays at 0%, the phone says "633A B100" and lgup crashes after 9% "prepare dlmode" or something similar. any ideas? :/
Some people seem to have fixed this issue by flashing the official Cyanogenmod Recovery.
thewild said:
Some people seem to have fixed this issue by flashing the official Cyanogenmod Recovery.
Click to expand...
Click to collapse
After flashig the CM Recovery via TWRP, i can't use the recovery anymore. If i boot into CM-Recovery the display shows "Ereasing" and start the system. After that i got a bootloop.
Is it possible to use fastboot??
You guys should also check CM14.1 thread because people there are talking about the same problem. The latest post says the only solution was to flash an official kdz with LGUP.
thewild said:
You guys should also check CM14.1 thread because people there are talking about the same problem. The latest post says the only solution was to flash an official kdz with LGUP.
Click to expand...
Click to collapse
Did that. Worked once. Then i tried to flash cm again and had the same problems, so i wanted to flash stock again... now lgup crashes at 9% and the phones goes directly to download mode after turning it on.
onlyolli said:
Did that. Worked once. Then i tried to flash cm again and had the same problems, so i wanted to flash stock again... now lgup crashes at 9% and the phones goes directly to download mode after turning it on.
Click to expand...
Click to collapse
And the two times you tried to flash CM, that was with the same recovery ?
Can you go into fastboot mode ?
thewild said:
And the two times you tried to flash CM, that was with the same recovery ?
Can you go into fastboot mode ?
Click to expand...
Click to collapse
Yes, it was with cm recovery 20161130, if i remember correctly.
Sadly now, i can not go into fastboot. The phone goes directly into download mode. My windows vm detects the phone, and tries to flash a recent kdz, but lgup crashes at 9%. The phone still shows "0%".
Oh that's bad. What about another kdz ?
thewild said:
Oh that's bad. What about another kdz ?
Click to expand...
Click to collapse
Already tried like 3-4.... Its always the same. If the tool would at least give me a little bit more information, but it just stops.
I don't know then. Some users seem to have had the same problem (stuck at 9%) : http://forum.xda-developers.com/search/forum/4233?query=lgup 9%
I had the same issue, tried several things, my final solution was:
- Start in download mode (Volumen up and then plug in cable)
- use "LG Brigde" on Mac to install stock Rom ( Software update tab in APP ) guess should also work with Windows
- Boot original android
- enable usb debug
- Start bootloader via ADB
- fastboot flash recovery to twrp 3.0.2
- Boot in recovery via power and vol down (first factory reset from stock appears but after this twrp is starting)
- install cm nighty of 1 DEC via ADB sideload
- reboot and done
In the meantime i updated to twrp 3.0.2-1., installed gapps etc. everything is now working fine again.
Hope this is also working for you.
Which version of cm14 did u download and install? Can u please post the exact version?
Mmh ... LGUP is the Windows utility right ? How do I do if I only have a Linux machine ?
steadfasterX said:
When you say you try the recovery mode how do you try to get into it? Btw do you have twrp installed?
Click to expand...
Click to collapse
I'm trying to get to it via power+down, I get to the double "do you want to factory reset ?" question, but then :
- sometimes the CM recovery just says "erasing" for a few seconds and reboots to (non-working) CM
- sometimes it just plainly boots to (non-working) CM
I used to have TWRP installed but it didn't work with CM update, so I let CM install its own recovery.
A couple of days ago my phone started crashing randomly, so I decided to deactivate all my Magisk packages which seemed to fix the issue, but the next day it crashed again and it wouldn't go past the boot screen anymore. It crashes the moment the three little white boot up dots appear on the screen, so I decided to clear all the data through TWRP and flash a stock rom all over again. All seemed fine until I tried to install TWRP and root the rom. My phone is now stuck constantly crashing on the boot up screen no matter what I do. Does anyone have any advice? Thanks.
JimmyWhiskers said:
A couple of days ago my phone started crashing randomly, so I decided to deactivate all my Magisk packages which seemed to fix the issue, but the next day it crashed again and it wouldn't go past the boot screen anymore. It crashes the moment the three little white boot up dots appear on the screen, so I decided to clear all the data through TWRP and flash a stock rom all over again. All seemed fine until I tried to install TWRP and root the rom. My phone is now stuck constantly crashing on the boot up screen no matter what I do. Does anyone have any advice? Thanks.
Click to expand...
Click to collapse
Try FORMAT data option under twrp and go to advance and repair all the partition. Restart recovery then flash custom rom. Xiaomi eu. Let see if it got stuck again or not..
kraken77 said:
Try FORMAT data option under twrp and go to advance and repair all the partition. Restart recovery then flash custom rom. Xiaomi eu. Let see if it got stuck again or not..
Click to expand...
Click to collapse
I've tried that and it doesn't seem to do anything. I've formatted all data and even repaired the partitions. Nothing seems to work.
JimmyWhiskers said:
I've tried that and it doesn't seem to do anything. I've formatted all data and even repaired the partitions. Nothing seems to work.
Click to expand...
Click to collapse
Did you format and type yes before formatting?
any success??
kraken77 said:
Try FORMAT data option under twrp and go to advance and repair all the partition. Restart recovery then flash custom rom. Xiaomi eu. Let see if it got stuck again or not..
Click to expand...
Click to collapse
What is with flashing xiaomi eu specifically? Shouldn't any custom rom work?
rtm2000 said:
What is with flashing xiaomi eu specifically? Shouldn't any custom rom work?
Click to expand...
Click to collapse
Nothing serious actually but to troubleshoot and to see if 'stock rom' causes that problem rather than 'custom rom'.. but its okay if you want to use custom rom.