Help, problems with booting LG P920 - LG Optimus 3D

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.

Related

[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.

LG optimus 3D only rebooting

Hi
Can someone help me?
my lg reboots on lg logo , its shows lg logo about 1 sec only then restart.
OMAP driver is installer and in computer its on and offf all the time.
i installed Bin Large Partition from Xbsall and now its just reboots.
Can someone help me that kind of problem?
Thanks
now its logged fastboot and I mistakely foramat system
how i can flash romname.bin with fastboot?
maamees said:
now its logged fastboot and I mistakely foramat system
how i can flash romname.bin with fastboot?
Click to expand...
Click to collapse
extract system.img then
Code:
fastboot flash system system.img
can,t extrackt bin file , but i have tryed flash recovery but cant get there, flashed back system.img but still stuck at lg logo, is it possible to flash entire rom with fastboot? if i try flash like one rom an error
c:\Fastboot\dark>fastboot update ics.zip
archive does not contain 'android-info.txt'
archive does not contain 'android-product.txt'
error: update package has no android-info.txt or android-product.txt
and if i try to flash system only its says system img is too large.
There's one thing to try.... If you have backup copy on your external SD, just copy boot.img from that backup folder onto your computer and fastboot flash both boot.img and cwm.img (wpark V1.25 compatible CWM is recommended), and then enter CWMR from there and install the backup copy.
Sent from my LG Thrill 4G (PAC-man 4.1) using XDA app
there is problet that I Dint, make backup, but if i can get to recovery i can put phone work again. At least i think so. Is there possible to install any roms with fastboot if you make there android-info and protuct files ?
Follow the installation steps and it will work.
Send from my XBSA VR3D P920..
Well, boot.img is also present in any CWM-flashable zip - extract this file and fastboot flash this kernel along with CWMR image (TWRP may do also but CWMR may be the only thing to do away with for now as well - wpark's ADB boot flash have CWM image also).
Sent from my LG Thrill 4G (PAC-man 4.1) using XDA app
flashed wpark's twrp and it works, but i dont havbe no imei anymore, thats why i cant conenct with sim too ?
maamees said:
flashed wpark's twrp and it works, but i dont havbe no imei anymore, thats why i cant conenct with sim too ?
Click to expand...
Click to collapse
Flash a baseband with LG FlashTool. It helped when I don't have signal and IMEI
If this don't help you, try this guide: [GUIDE] Unlock Phone / Recover IMEI
Take shiro1811's advice - use V21D or V21E baseband for CM10. This baseband version fixed my problems with CyanogenMod.
Sent from my LG Thrill 4G (PAC-man 4.1) using XDA app
i think i got all fixed now, flashed v21e stock and installed CM10, imei ok and can call ,
Great. :thumbup:
Sent from my LG Thrill 4G (PAC-man 4.1) using XDA app

[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.

SU760 KDZ need

I need a stock rom to flash in my SU760 because i briked it. http://csmgdl.lgmobile.com/swdata/WDLSW/LGSU760/ASKTDB/V30b_00/V30B_00.kdz i cant download this kdz.
Can someone give me a good rom to flash? i tryed to flash SU760V10GROM.zip but after i flash, my phone restart and restart and restart.... do you have any ideea why?
LAST EDIT****
Ok, i flashed my phone with V30B but now i got 2 problems, my phone restart after every 2-3 min and i cant restore my imei.
andrei3008 said:
I need a stock rom to flash in my SU760 because i briked it. http://csmgdl.lgmobile.com/swdata/WDLSW/LGSU760/ASKTDB/V30b_00/V30B_00.kdz i cant download this kdz.
Can someone give me a good rom to flash? i tryed to flash SU760V10GROM.zip but after i flash, my phone restart and restart and restart.... do you have any ideea why?
LAST EDIT****
Ok, i flashed my phone with V30B but now i got 2 problems, my phone restart after every 2-3 min and i cant restore my imei.
Click to expand...
Click to collapse
Here Flash It With LG Mobile Tool and All Well Be Ok
OptimusRs said:
Here Flash It With LG Mobile Tool and All Well Be Ok
Click to expand...
Click to collapse
Thank you man you are the best.

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

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