Some sort of boot error - G3 Q&A, Help & Troubleshooting

First, recovery works. So the phone(D855) itself is ok. The problem is after i power it on. The LG logo shows, but the bootanimation doesn't and it just turns off after that. I have tried flashing different roms and kernels but all have the same result. Charging to 100 doesn't work. Removing battery doesn't work. All I did was took my SIM card out and replaced it with another one then this problem happened. I changed it again and removed it but the same thing happens.
In short, I turn the phone on. LG logo shows, bootanimation doesn't, then the screen shuts off. TWRP works fine but it seems like the phone won't load or something. Any help would be appreciated!

Try putting your phone in Download mode and then flash a firmware (.tot), Follow this guide here:
http://forum.xda-developers.com/showthread.php?t=2785089

Update: I flashed a custom stock rom (Limited rom)and it actually booted. So I think CM/AOSP roms may be the problem or it could be xposed/kernel/other mods since i only managed to boot with the rom itself. But I'm still not sure about it.

aaronkatrini said:
Try putting your phone in Download mode and then flash a firmware (.tot), Follow this guide here:
http://forum.xda-developers.com/showthread.php?t=2785089
Click to expand...
Click to collapse
I'll try that again when there's nothing left to do. Thanks for your suggestion.

Related

Help with brick

I was trying to flash my phone (AT&T SGS3) back to stock today using this thread
http://forum.xda-developers.com/showthread.php?t=1739426
While I was downloading, I accidentally kicked the usb cable out of the phone.
I immediately pulled the battery and restarted the process.
Odin said it succeeded but when I boot I get stuck on a screen where it just says samsung. Like the first screen you see on boot but it happens a second time after the galaxy s logo and the at&t logo.
I don't know how to fix this. Can someone please help?
Also I was going to try the not rooted stock roms from this thread.
http://forum.xda-developers.com/showthread.php?t=1737848
But the downloads don't seem to be working. Anyone know where I can download the stock roms?
dmobbjr said:
I was trying to flash my phone (AT&T SGS3) back to stock today using this thread
http://forum.xda-developers.com/showthread.php?t=1739426
While I was downloading, I accidentally kicked the usb cable out of the phone.
I immediately pulled the battery and restarted the process.
Odin said it succeeded but when I boot I get stuck on a screen where it just says samsung. Like the first screen you see on boot but it happens a second time after the galaxy s logo and the at&t logo.
I don't know how to fix this. Can someone please help?
Also I was going to try the not rooted stock roms from this thread.
http://forum.xda-developers.com/showthread.php?t=1737848
But the downloads don't seem to be working. Anyone know where I can download the stock roms?
Click to expand...
Click to collapse
'
Maybe try going into recovery mode and do a factory wipe there.
That worked. Thank you, you just saved me in a big way
Glad it worked. Happened to me too. From what I learned when changing ROM types tw-> aosp you need to wipe data.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[Q] Touch Pro 2 rebooting in loop.

So, today I booted up my phone, To my surprise, it didn't boot correctly. The Windows logo appeared for a second, and then it went dark. Then, the phone booted again. And it's like this in loop.
I tried to hard reset. Didn't work, the same thing happens.
So then I thought of flashing some ROM. I didn't have Hard-SPL on my phone before that happened, and in order to load it, I have to estabilish an ActiveSync connection... which I simply can't do, since the WMO doesn't want to boot.
So, any solution to that? Thanks.
plrusek said:
So, today I booted up my phone, To my surprise, it didn't boot correctly. The Windows logo appeared for a second, and then it went dark. Then, the phone booted again. And it's like this in loop.
I tried to hard reset. Didn't work, the same thing happens.
So then I thought of flashing some ROM. I didn't have Hard-SPL on my phone before that happened, and in order to load it, I have to estabilish an ActiveSync connection... which I simply can't do, since the WMO doesn't want to boot.
So, any solution to that? Thanks.
Click to expand...
Click to collapse
Try flashing the stock rom from the sd card.
wizardknight said:
Try flashing the stock rom from the sd card.
Click to expand...
Click to collapse
EDIT: ok, so i downloaded few roms and one managed to flash through exe. i was happy, until i saw that booting the phone took longer than usual - just like before flashing a rom (much longer at the part where it shows all the info about phone)
then it got to that little animation. Windows logo appeared and then......... it went black. rebooted. one time it actually tried to install windows but right at the beginning screen went black and phone rebooted.
EDIT2,3: my battery run out on android and was overdrained. i think this is the cause... it also boots up the phone if i plug any usb cable in.
EDIT4: i just thought - if i managed to flash a rom, the battery IS charged. the bootloader mode was on for at least 20 minutes. so what is really the issue?
Try flashing the STOCK rom from the sd card.
Flashing a rom requires a working charged battery.
Once that works move on to other options.
wizardknight said:
Try flashing the STOCK rom from the sd card.
Flashing a rom requires a working charged battery.
Once that works move on to other options.
Click to expand...
Click to collapse
I already flashed one! I just flashed it from my computer to the phone through bootloader, I can't seem to find any stock roms that I can put on my SD card. And as i said, i can't flash a custom one because I don't have HardSPL on my phone.
And the battery seems to work correctly on bootloader.
okay, i'm down. got a new battery, and the problem still remains. i might have tried flashing the stock rom through sd card, if only i could FIND !!!! one (RHOD100, so GSM). any help on that? i'll gladly appreciate it.
EDIT: so i managed to flash the stock rom from htc - .exe is extracting the image file to temp somewhere, so that's how i got it. unfortunately, that didn't change anything. i'll leave my phone rebooting for a night and see what's up tommorow...
EDIT2: phone is dead. i will have to move on from windows mobile... about time.

Stuck in Boot loop after weeks of normal usage

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.

Is my phone gone forever ?

Hey guys, i was trying to install a custom ROM in my cell phone Lineage OS. At first all i got was "Secure Boot error" when i tried to enter Recovery mode ( after i flashed TWRP, ofc. ) Well then i followed this tutorial :
https://forum.xda-developers.com/lg-g3/help/help-secure-boot-error-trying-to-boot-t3054977
Then when i flashed with this Bump'd TWRP : http://downloads.codefi.re/thecubed/lg_g3/bump/
(LG D855P) my phone just turned off and won't turn on again, when i take off the battery, it shows a battery icon with "?". Is it hardbricked ? i got no warranty left, what should i do ?
It sounds like your phone might be on the brink. I don't think its past saving yet though. Have you tried the process for flashing it back to stock? A link to the process is below:
https://forum.xda-developers.com/showthread.php?t=2785089
blaze2210 said:
It sounds like your phone might be on the brink. I don't think its past saving yet though. Have you tried the process for flashing it back to stock? A link to the process is below:
https://forum.xda-developers.com/showthread.php?t=2785089
Click to expand...
Click to collapse
I can't even enter on Download mode.
Edit: Tried to flash anyway, wont work
Try this: https://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359 This should get you to the point where you'll be able to use the method I previously linked.
Any updates?

LG G4 H815 Download Mode reboots after ~10 seconds

Hello, first of all I want to apologise if this problem was already discussed, I tried searching in threads and also using the old friend google, but found nothing related.
So, yesterday, I managed to flash the a.o.s.c.p cypher OS (https://forum.xda-developers.com/g4/development/g4-cypheros-t3680102), Oreo version, and after I tried rooting with Magisk I've got bootloop issues with the rom. After this, I reinstalled the zip file and it managed to go back to the OS, but every installed app would crash when tried to open. Because I did not find my backups (not too organised, I know) I tried flashing through LG UP the "LGH815 EU Nougat 7.0 BySezerSimsek.tot" file I had downloaded on my laptop, unfortunatelly, after 10~ seconds, the download mode just restarted and since then (though, it was doing this before I tried to flash with LG Up, but I thought that after I start flashing it will not reboot...), everytime I try to boot my device either normal or to recovery mode, it goes automatically to download mode, where it stays for 10 seconds and then reboots (So I'm not able anymore to use LG UP).
Also, tried LGMobile Support tool, but because I cannot keep the phone in download mode more than 10 seconds, it fails to do anything, it finished to download a firmware for it, but was unable to flash it.
Is there any chance I can "revive" it? the battery was about 50% when I started the first try with download mode, so now, it should be around 20-30% I guess.
In Download Mode, in the box, it says:
633A B49
Modified
P.S.1: After reading some more threads, I found that some people were stuck at 9% while flashing with lg up, but for me, as I said before, the download mode just keeps restarting no matter what I do with it ( even if I just leave it not connected to the pc)
P.S.2: After some more flashing with LGUP tries, I came to conclusion that the download mode restarts after ~17 seconds, and now, in the rectangle it says:
633A B56
Modified
P.S.3: I have been trying to flash "Europe H81520D_00_0115.kdz" and sometimes, if I get the timings right, I can get up to 25% (it restarts at 9%, ~19% and then 24-25%, so, it doesn't always give error after restarting and reconnecting to LG UP). I used the .dll extracted from .kdz file.
Hello, i have the exact same problem as yours with the same custom rom.
My phone stays around 20 seconds in download mode, i can launch LG UP to flash H81520i but 20 seconds is just not enough to flash the LG G4 firmware AFAIK.
I did see that there are some ways to launch the Qualcomm emergency mode but we'll need to disassemble the phone to short two pins to force it to boot in this mode.
I finally found the solution ! Follow this tutorial : https://forum.xda-developers.com/g4/general/guide-proper-h815-unbrick-qfil-files-t3709212 You'll need to disassemble the phone in order to do this tutorial, after you've done the emmc flash you will need to reflash a rom with LGUP.
Nopraz said:
I finally found the solution ! Follow this tutorial : https://forum.xda-developers.com/g4/general/guide-proper-h815-unbrick-qfil-files-t3709212 You'll need to disassemble the phone in order to do this tutorial, after you've done the emmc flash you will need to reflash a rom with LGUP.
Click to expand...
Click to collapse
Thank you for the reply.
I already fix my G4, but unfortunatelly I do not have like a detailed fix because: I went to a "Phone repair shop" and I left my phone there for one day. As I said, before I was not able to boot into recovery, the phone was restarting in download mode after ~17 seconds, and I had no idea about the battery percentage.
The next day I took back the phone and the guy there told me that there was not much he could do, but when I got home, the moment I tried to boot it, it went to recovery mode (twrp) where I tried to install a ROM (I forgot which one, but it was a .zip) and it failed to mount /cache. After that, I tried booting into download mode where it stayed for as long time as I needed without restarting. I was trying to flash 20D version (failed at 25% everytime) until I found this thread where the advice was to use the 20P version. After that it just worked fine.
So, I have no idea what did the guy from the "repair shop", I don't now if it was just related to my battery "running out of juice" or maybe he used any other "magic" box with tools for android smartphones (I've got back my phone with ~60% battery).
Also, before I went to the repair shop, I tried a method I found on xda, unfortunately I could not find the link right now, where I had to format a micro sd card and kind of "flash" (it's not actually flashing) a file to the SD card, put it inside the phone and just boot into Download mode (I'm not sure if it affected somehow the state of my phone)

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