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Help, problems with booting LG P920

Hello, I have a LG P920. When I was going to root it and install an ICS rom I tried to install the u-boot and x-loader from wkpark. But for som reason the phone wouldn't boot, so it got stuck in a bootloop. After trying to fix it several ways i ended up with it boot directly into recovery and when I try to flash a boot.img it says that it doesn't excist any boot partiton. I have really no idea what to do to fix it. Please help. In advance thank you.

Did you try flash *.bin or *.kdz ??
And what you mean with "when I try to flash boot.img ..." the recovery can not flash a *.img
Just *.zip which contain :- boot.img and META-INF .
Here is the link :-
http://forum.xda-developers.com/showthread.php?t=1629307

Yeah, try flashing with lg flashtool
Sent from my P920 using ICS 4.0.4 by XBSA

When I said flash boot.img I meant trough fastboot, followed this tutorial. And for some reason I cannot access recovery, it is highly possible that I am doing that the wrong way.
I have tried to use LG Flasht tools, but I think I'm doing something wrong. And when thats said, I'm not completly sure in which mode I should be in, meaning fastboot, recovery, download mode. The problem is that when I try using flash tools, it seems when I set it to use port 1 in flash tools nothing happends. When comparing to other screenshots, I can also see that in flash tools it doesn't recognise, or at least not telling me (at the top info bar) what model, or S/W just the file name.
I kind of tried smart flash from the link, but I ended up with a complete wipe, and it seemed like it hadn't been flashed any new rom.

About the mode just remove sim , sd card and the battery press and hold vol up and then connect it to the computer .
About the port , first you should change the port from windows device manager to port 1 .
I'm sorry about the boot.img ...etc . So I see many people in XDA extract the *.zip and flash it with CWM . In XDA I saw every thing
Sent from my LG-P920

Hey this happened to me yesterday
If u can boot to recover then just do a restore if u have a backup this worked for me
Sent from my LG-SU760 using xda app-developers app

I have the same problem. I tried all ways to solve but they didn't work.
I flashed ICS Rom for my P920 from xbsall, but I had some problems about signal. The calls are always disconnected while Wifi 3G work normally.
I decided to flash v21.e ROM ( GB) again but the phone just stuck at Logo LG (I tried both kdz or bin file). Seems to be hopeless :crying:. I also realize that the Emergency mode disappeared ( The screen just flashed fast and off ).
The problem is solved if I flash ICS ROM back, but I don't want to.
Need help from you guys !

dandavid3000 said:
I have the same problem. I tried all ways to solve but they didn't work.
I flashed ICS Rom for my P920 from xbsall, but I had some problems about signal. The calls are always disconnected while Wifi 3G work normally.
I decided to flash v21.e ROM ( GB) again but the phone just stuck at Logo LG (I tried both kdz or bin file). Seems to be hopeless :crying:. I also realize that the Emergency mode disappeared ( The screen just flashed fast and off ).
The problem is solved if I flash ICS ROM back, but I don't want to.
Need help from you guys !
Click to expand...
Click to collapse
What bin have you flashed? I guess you havent used the one from xbsalls guide..
Sent from my P920 using ICS 4.0.4 by XBSA

TMProduct1onZ said:
What bin have you flashed? I guess you havent used the one from xbsalls guide..
Sent from my P920 using ICS 4.0.4 by XBSA
Click to expand...
Click to collapse
I used it but it didn't work
Link here http://forum.xda-developers.com/showthread.php?t=2001953
and http://forum.xda-developers.com/showthread.php?t=1942836

dandavid3000 said:
I used it but it didn't work
Link here http://forum.xda-developers.com/showthread.php?t=2001953
and http://forum.xda-developers.com/showthread.php?t=1942836
Click to expand...
Click to collapse
just use xbsall repair method

I have fixed the phone. After doing a lot of what I don't know what I do. I finally realised that one of my biggest problems was that I used a 64 bit windows 7 computer. The way I fixed mine was trough setting it in normal download mode and you smart flash to get it to an original rom. If anybody need to try what I did and need help from me, if I can provide it. You should send a PM because I am never in the LG P920 thread beacuse I was fixing a friends phone. So as for me this thread can be closed moderators.

[Q] ?HowTo? P720 from CM10 back to StockROM

Is there any working way, to flash my LG P720 back from CM10 to StockROM?
I have tried different ways:
- flash with KDZ_FW_UPD.exe
- flash with UpTestEX_mod2_marwin.exe
- flash with the the LGMobile Support-Tool
I have tried this:
http://forum.xda-developers.com/showthread.php?t=1287236
I have read a lot, but I found no answer... .
What works..
- go to fastboot 0.5
- go to S/W Upgrade mode
- go to USB-Debugging (but no driver's found for this)
Can someone help me please?
THANKS A LOT!!!

have u done NandroidBackup before flashing to CM10?

Now I have the same problem too
My backup is correct and used it one time but now after restoring the phone stucks at first LG logo maybe it kernel issue
Any ideas?
Sent from my LG-P720 using Tapatalk 2(P725 not P720!)

forfoxy said:
have u done NandroidBackup before flashing to CM10?
Click to expand...
Click to collapse
..yes, but the backup is broken.. .
I had the hope, that it is not a big problem, because I had a LG E400, there I could flash back to stockROM without any kind of problems.
I think, the BIG PROBLEM is, that the CM10 flash gives the P720 an other serial number, IMEI is still the right one. Any try to flash back to stockROM stops with mistakes.. for example: "magic number does not concide"
Maybe a chance to change the serial number? (the S/N on the BOX is an other than in the phone!!!/IMEI still correct)
Thanks for help!

boly007 said:
Now I have the same problem too
My backup is correct and used it one time but now after restoring the phone stucks at first LG logo maybe it kernel issue
Any ideas?
Sent from my LG-P720 using Tapatalk 2(P725 not P720!)
Click to expand...
Click to collapse
try to restore your backup then the phone is not plugged to wall charger (i see it's CM 6 issue).
---------- Post added at 06:59 AM ---------- Previous post was at 06:55 AM ----------
cuttero said:
..yes, but the backup is broken.. .
I had the hope, that it is not a big problem, because I had a LG E400, there I could flash back to stockROM without any kind of problems.
Thanks for help!
Click to expand...
Click to collapse
try to flash to THUNDERSNAP mod, and then flash to stock firmware.

[Q] error flashing baseband lg su760

hi i am using lg o3d su760 last week suddenly my phone disappear imei so i try to flash bin & fls using smart flash tool & lg flash tool it did not success...before i flashed successfully tried different version of android version it working but now i cant able to flash any android version.using any flashing method including kdz format. the thing is i can able to successfully flash bin file only so i can install any android version it worked phone booted but there is no imei if i select any fls file using smart-flash tool and lg flash tool always getting error at 55% Req StartA error please any one help me...is there any other-way to flash base-band????????

bond905 said:
hi i am using lg o3d su760 last week suddenly my phone disappear imei so i try to flash bin & fls using smart flash tool & lg flash tool it did not success...before i flashed successfully tried different version of android version it working but now i cant able to flash any android version.using any flashing method including kdz format. the thing is i can able to successfully flash bin file only so i can install any android version it worked phone booted but there is no imei if i select any fls file using smart-flash tool and lg flash tool always getting error at 55% Req StartA error please any one help me...is there any other-way to flash base-band????????
Click to expand...
Click to collapse
which version are you trying? ics or gb?
Try with KDZ Flashing Software >> http://forum.xda-developers.com/showthread.php?t=2191698
If you want to write imei on phone just try this guide >> http://forum.xda-developers.com/showthread.php?t=1734330

kdz also not working..
Unique Boy said:
which version are you trying? ics or gb?
Try with KDZ Flashing Software >> http://forum.xda-developers.com/showthread.php?t=2191698
If you want to write imei on phone just try this guide >> http://forum.xda-developers.com/showthread.php?t=1734330
Click to expand...
Click to collapse
i already mention kdz method also not working always getting error in 16%......

Baseband flashing does not complete to 100% like a .bin. It normally 'fails' after 80 seconds or so in FT, around 55%. After attempting flashing, check your baseband in Settings About Phone and see what it says.

drastic00 said:
Baseband flashing does not complete to 100% like a .bin. It normally 'fails' after 80 seconds or so in FT, around 55%. After attempting flashing, check your baseband in Settings About Phone and see what it says.
Click to expand...
Click to collapse
in about phone it says xm6222 ics baseband it will not change if i flash any baseband...

You might need to fix imei first but I am not sure. It has never happened to me.

Phone stuck at boot and led flashing blue.

So I tried the dual screen mod on my rooted flex2 and after making the changes, I restart my phone. Now it stays at he LG logo and the LED blinks blue slowly. I cant get it in any modes. PLEASE help if possible.

Which dual screen mod? Link please.
Tapatalk Pro 4.6.2

_jis_ said:
Which dual screen mod? Link please.
Tapatalk Pro 4.6.2
Click to expand...
Click to collapse
This one : http://forum.xda-developers.com/g-flex2/general/mod-lg-g-flex-2-dual-window-mod-t3053380

asamu694 said:
This one : http://forum.xda-developers.com/g-flex2/general/mod-lg-g-flex-2-dual-window-mod-t3053380
Click to expand...
Click to collapse
I was able to get into recovery mode and did a wipe of cache and data/factory reset but phone still hangs at bootloader.

asamu694 said:
I was able to get into recovery mode and did a wipe of cache and data/factory reset but phone still hangs at bootloader.
Click to expand...
Click to collapse
Try to get back to stock ROM or flash any custom ROM.
tra_dax

tra_dax said:
Try to get back to stock ROM or flash any custom ROM.
tra_dax
Click to expand...
Click to collapse
I would have to do it in recovery mode as I am unable to get into download mode. Do you have a link to a stock rom?
I am using LS996 zv6

asamu694 said:
I would have to do it in recovery mode as I am unable to get into download mode. Do you have a link to a stock rom?
I am using LS996 zv6
Click to expand...
Click to collapse
I am currently downloading the stock rom here: http://forum.xda-developers.com/g-flex2/general/return-to-stock-ls996-stock-img-t3217089
It will take a while as I only have 1mb internet connection.

asamu694 said:
I am currently downloading the stock rom here: http://forum.xda-developers.com/g-flex2/general/return-to-stock-ls996-stock-img-t3217089
It will take a while as I only have 1mb internet connection.
Click to expand...
Click to collapse
Stock ROM cannot be flashed with recovery, u need flashtool and more important ur device should boot into download mode. So try ur hands on custom ROM.
tra_dax

tra_dax said:
Stock ROM cannot be flashed with recovery, u need flashtool and more important ur device should boot into download mode. So try ur hands on custom ROM.
tra_dax
Click to expand...
Click to collapse
I tried to go into download mode but the phone just stays at the bootloader, so far I can only get into recovery mode.
What do I need to have to resolve the issue from recovery mode?
I have a friend with the exact model that I can get the files i need to fix mine.

tra_dax said:
Stock ROM cannot be flashed with recovery, u need flashtool and more important ur device should boot into download mode. So try ur hands on custom ROM.
tra_dax
Click to expand...
Click to collapse
Can I install custom ROM from stock recovery mode?

First of all you shouldnt have made a factory reset.
Did you have a rootedsystem.img or system.img in the root of your internal sd card?
If you did all you had to do is dd flash that image and your phone would have returned to life. If you read the instructions to rooting you shouldve made a backup first!
If you flash ZV5 TOT you will hard brick your phone.

asamu694 said:
Can I install custom ROM from stock recovery mode?
Click to expand...
Click to collapse
Well I thought u had custom recovery, never mind, u just need to enter in bootloader and flash the stock ROM. This might save u from soft brick.
Sent from my GT-S7390 using XDA Forums

Alex_XV6700 said:
First of all you shouldnt have made a factory reset.
Did you have a rootedsystem.img or system.img in the root of your internal sd card?
If you did all you had to do is dd flash that image and your phone would have returned to life. If you read the instructions to rooting you shouldve made a backup first!
If you flash ZV5 TOT you will hard brick your phone.
Click to expand...
Click to collapse
I thought the factory reset would have fixed the problem. I bought the phone already rooted, so no I dont have neither of the .img files. I have a friend with a similar phone, can i get the files i need from that phone?

tra_dax said:
Well I thought u had custom recovery, never mind, u just need to enter in bootloader and flash the stock ROM. This might save u from soft brick.
Sent from my GT-S7390 using XDA Forums
Click to expand...
Click to collapse
No its the stock recovery and how would I enter in the bootloader?

Currently downloading the stock .tot file and will use the return to stock tot method.
http://forum.xda-developers.com/g-flex2/general/guide-lg-g-flex-2-stock-firmware-to-t3037593

asamu694 said:
Currently downloading the stock .tot file and will use the return to stock tot method.
http://forum.xda-developers.com/g-flex2/general/guide-lg-g-flex-2-stock-firmware-to-t3037593
Click to expand...
Click to collapse
Sorry bro I couldn't help u out much bcoz I m not much familiar to lg devices. And that was nice, u found the way???. But if u still get stuck anywhere don't hesitate to post here, I'll try to help u out at my best.
tra_dax

asamu694 said:
Currently downloading the stock .tot file and will use the return to stock tot method.
http://forum.xda-developers.com/g-flex2/general/guide-lg-g-flex-2-stock-firmware-to-t3037593
Click to expand...
Click to collapse
Didnt you read my post?
YOU WILL HARD BRICK!
And theres no coming back from hard brick unless you can send your phone to LG for warranty repair.

same
I just got phone but it's us cellular and trying to root to unlock sim for tmobile. Tried flashing Sprint root.img LS996-ZV6. And it just sits at logo. cant get into download mode, and dont know how to even get into recovery mode... appreciate any help.
edit:nevermind I fixed it w/ lg mobile support tool.

Alex_XV6700 said:
Didnt you read my post?
YOU WILL HARD BRICK!
And theres no coming back from hard brick unless you can send your phone to LG for warranty repair.
Click to expand...
Click to collapse
I am seeing the part where you said not to flash with zv5, so what are my options at this point? can I use a rootedsystemLS996_ZV6 file i had downloaded? Or Should i check on my friends phone to see if he has the rootedsystem.img or the system.img?

dbizzy said:
I just got phone but it's us cellular and trying to root to unlock sim for tmobile. Tried flashing Sprint root.img LS996-ZV6. And it just sits at logo. cant get into download mode, and dont know how to even get into recovery mode... appreciate any help.
edit:nevermind I fixed it w/ lg mobile support tool.
Click to expand...
Click to collapse
How the you fix with lg mobile support tool?

H810 bricked after using lgup

please help, my mobile is in bootloop , i was using prerooted system rom h81010o , i wanted to go back to stock rom , so i used LGUP and stock LGH810AT-00-V10o-ATT-US-SEP-10-2015-ARB02+0_User_Secure file, choosed refurbish and flashed it , but now i can only see blinking lights ,LG LOGO , please tell me what should i do now

Amit2310 said:
please help, my mobile is in bootloop , i was using prerooted system rom h81010o , i wanted to go back to stock rom , so i used LGUP and stock LGH810AT-00-V10o-ATT-US-SEP-10-2015-ARB02+0_User_Secure file, choosed refurbish and flashed it , but now i can only see blinking lights ,LG LOGO , please tell me what should i do now
Click to expand...
Click to collapse
Does installation of new sw successful??
If yes, maybe your device already stuck in bootloop issue, have to changed the motherboard.

faizalotai said:
Does installation of new sw successful??
If yes, maybe your device already stuck in bootloop issue, have to changed the motherboard.
Click to expand...
Click to collapse
yes, installation was successfull, it went to bootloop offcourse ,, i tried another method of flashng h810pr version with lg flash tool after reading from xda thread , but it hard bricked my mobile, i think its gone already, no more download mode ,
am going to try in shop if they can do something

Amit2310 said:
yes, installation was successfull, it went to bootloop offcourse ,, i tried another method of flashng h810pr version with lg flash tool after reading from xda thread , but it hard bricked my mobile, i think its gone already, no more download mode ,
am going to try in shop if they can do something
Click to expand...
Click to collapse
Did you tried flash again 10o sw? If its hard brick than nothing can be done...
They might replaced with new one if you have warranty