Well people, i have and P778g and i try to root uncusefull v20A Personal Argentina, and the phone don´t pass the LG logo.
I cant acces to the Bootloader (SW Update) whit the combination of butons but i can enter to the Recovery Mode of LG (Not the CWM) and i can enter to fastboot (I have a unlocked bootloader)
I tryed to flash with fastboot varios u-boot and recovery and don´t work
When i try to put CWM on my phone via ADB, it´s says "waiting for device" and nothings happen :/
Mods, the Thread can be closed, i fix that
Snowers96 said:
Mods, the Thread can be closed, i fix that
Click to expand...
Click to collapse
Can you tell us how did you do it?
Related
Hi,
I have big problem. When i oc my phone on stock JB (V20B Europe open), phone was rebooted and after reboot stay on logo LG. I can get to cwm, i restore my backups,wipe all, try flash custom roms and nothings, same problem. KDZ shows me, that "Port(USB or Serial) not found" on all PCs where i try flash kdz, before this problem R&D tool works fine. I try reinstalling all drivers,usb drivers,adb drivers,lg drivers and nothing... I have unlocked bootloader,fastboot. Adb finds my phone only in recovery and when i try some commands, write <Waiting for device>, adb drivers are installed and work fine for other devices. Thnx for answers.........
Malcolmekkk said:
Hi,
I have big problem. When i oc my phone on stock JB (V20B Europe open), phone was rebooted and after reboot stay on logo LG. I can get to cwm, i restore my backups,wipe all, try flash custom roms and nothings, same problem. KDZ shows me, that "Port(USB or Serial) not found" on all PCs where i try flash kdz, before this problem R&D tool works fine. I try reinstalling all drivers,usb drivers,adb drivers,lg drivers and nothing... I have unlocked bootloader,fastboot. Adb finds my phone only in recovery and when i try some commands, write <Waiting for device>, adb drivers are installed and work fine for other devices. Thnx for answers.........
Click to expand...
Click to collapse
Hard reset : Turn off your phone, press and hold Vol-, the home key, and the power for 8 seconds.
If you don't have stock jb backed up you can probably use jb cwm backup from http://forum.xda-developers.com/showthread.php?t=2136204
Hi all!!
Yesterday i tried to install android 4.4 but the procces didnt succeed, it stuck at. LG boot logo. So i decided to restore my backup in ckockworkmod,it started the process then stopped at the phase "restoring /system" . I waited about a half hour, and because it didnt take the much time before, i took out the battery. I read somewhere that formatting the system partition in cwm could help, so i did that. Then i retried restoring my backup. It stuck at the same phase. Later i downloaded the official kdz, and decided to flash it. I could bring the phone in update mode, but the process stopped at 15% at lg update manager.
At the moment i can get into clockworkmod, but cant restore /system . The update mode is also okay. I dont know that fastboot works or not. I havent tried it yet. Please help me thanks in advance
@trapistasajt
You will need to get fastboot working and use lelus's fastboot script to flash the "u" and "x" loaders for the device and then perform the offline or online flash
http://forum.xda-developers.com/showthread.php?t=2292828
Also as you found out you cannot flash custom roms without ulocking the bootloader first and you cannot use the L9 CWM bootstrap recovery for Locked Bootloaders, too flash custom roms.
try this online flash methode with B2CAppSetup
http://forum.xda-developers.com/showthread.php?t=2085344
i had the same probleme and i fixed it .
My bootloader is unlocked. I tried the fast boot method, but it doesnt go further than "Waiting for omap...." . So, i couldnt go into fastboot (probably my fault). Yesterday i sent it to the service. If they notice that my varranty is void (because of the unlocked bl) and send it back, i will try it once more. I would be very thankful if someone could write a noob friendly-fastboot guide. As i read, lots of people are struggling with the same problem. Thanks in advance!!!
You have to use LGMobile Support Tool (Install drivers from it first) Then enter in download mode conecting the phone to pc pressing vol+ and the rest its automatic.
jufece said:
You have to use LGMobile Support Tool (Install drivers from it first) Then enter in download mode conecting the phone to pc pressing vol+ and the rest its automatic.
Click to expand...
Click to collapse
I installed the drivers but it didnt work
trapistasajt said:
I installed the drivers but it didnt work
Click to expand...
Click to collapse
what happened??
jufece said:
what happened??
Click to expand...
Click to collapse
It didnt go further than searching for "omap device", so i couldnt load fast boot, as i said. my phone is still in the service
If they 'll send it back to me, because of unlocked bootloader, i wil try it once more. Any suggestions?
trapistasajt said:
It didnt go further than searching for "omap device", so i couldnt load fast boot, as i said. my phone is still in the service
If they 'll send it back to me, because of unlocked bootloader, i wil try it once more. Any suggestions?
Click to expand...
Click to collapse
I dont know about fastboot.
LG Mobile support tool let you download the correct drivers. Then connect your phone while u keep pressing vol+ and it enters in SW Upgrade mode. Then just click "additional features" and "upgrade error recovery"
jufece said:
I dont know about fastboot.
LG Mobile support tool let you download the correct drivers. Then connect your phone while u keep pressing vol+ and it enters in SW Upgrade mode. Then just click "additional features" and "upgrade error recovery"
Click to expand...
Click to collapse
Thanks! What should i do after that? Or it will automatically flash v20h on my phone?
trapistasajt said:
Thanks! What should i do after that? Or it will automatically flash v20h on my phone?
Click to expand...
Click to collapse
It shows something about firmware ir will restore. Ir will flash the latestbfirmware from original carrier release.
For example i actuallybhave v20L but my original carrier only released v10a. It will restore to v10a
None of them works, other ideas?
This fastboot method worked for me in 5 min, pay close attention to the instructions and it works!
http://androidforums.com/optimus-l9-all-things-root/807569-guide-security-error-fix.html
Spent days with LG update tool which if you read the log has no url for files to download.
Good luck!
I got my phone back from the service. They didnt repair it, because my varranty is void. I tried the methods mentioned above.
First, I tried flashing kdz, (with the solution for post-jb problem), but i couldn't get into S/W mode, which was available before the service.
Second, since i couldn't load S/W mode, the LG upgrader wasn't successfull, too
Third, fastboot still not work.
I am sure, that im not the only person with this problem, since it happened during installing @artas182x 's JB 4.4 rom. Please @artas182x or somebody write a noob-friendly guide/suggestion which may help to unbrick my beloved phone. Thanks!!!!!
Hi.! Guys i really need help.! I Know There is a "NON - ZTE Blade" Thread in The ZTE Blade Forums for All The NON ZTE Devices (Obviously) But this need more Help than a Quick Reply and i Dont Know Where to put It.!
Well The Problem is.. i Got a ZTE Nubia Z5 ("2nd Hand") With a Software Camera Problem (I Think is a Software problems Because the Camera Works Sometimes), I Tried To Hard Reset the Phone But i Just Got a White Screen, And i Tried To enter in Recovery Mode And Get The Same White Screen (The Phone in ADB its Recognized as "NX501 Recovery" Normally is in "NX501 Device"), That means Something in The Recovery NAND or Something i Dont Know is Bad.!
(The Phone was Normally Working Fine, Since... My Brother Installed Chainfire 3D and is Stuck in the Boot Logo, Sounds Normal like is Entering in the OS (That music that sound when u Turn on a Phone) But Still Stuck on the Boot Logo, i Read is a Chainfire Problem in some Devices)
So I Start to try To Install Some Custom Recovery CWM, TWRP etc.! Was TOO HARD to find a Recovery Because ALL The Information you can find on the Internet about This Phone is in Chinese (i Dont know Chinese) And Some Russian Too (Dont know Russian to (lol))..
So i Found a TWRP Recovery (Also a CWM Too) But both in Chinse (I Dont care if is in Chinese).! So I Tried To Enter in Bootloader Mode To Install The Custom Recovery, Ok The Phone ENTERS in Bootloader (i Think so) The phone Gets on the Boot logo and get "Recognized" as a "Sooner ADB Device", but in ADB dont get Recognized, With ANY of the ADB Drivers, ADB Composite, ADB Interface etc.! So i Dont Know What to Do Now.! Looks Like the Bootloader is Blocked or Something.!
So i Hope Someone Here Can Help Me .!
(Sorry For my bad English) Cheers!
Seriously No One Here have a Clue.? Some Admin Can Move This to The More Appropiate Place.? :crying:
Bumb!
I tired to restart phone after noticing that WI-FI isn't working (maybe my internet was laggy, don't know). After restarting phone was stuck on LG logo, i tried many times but again LG logo.
Then i started recovery, and wanted to flash some new ROM. But my CWM won't recoginze my SD card (to add, i wasnt using SD card with this phone). I tried other SD but problem stays. I google it and found out that maybe CWM needs update?
Version of CWM Recovery v6.0.3.1
This shows up when recovery starts..
E:Cant mount / cache/recovery/command
E:Cant mount / cache/recovery/log
E:Cant open / cache/recovery /log
E:Cant mount / cache/recovery/last_log
E:Cant open / cache/recovery/last_log
How to unbrick phone now?
Unfortunatly don't know what ROM was flashed before, or is bootloader unlocked or not. (coming from LG 3D, LG l9 was present. LG 3d methods for flashing is diffrent, so im little confused how to start anything now)
To add that phone now cannot turn on without charger pluged in. Powering on was OK in first few time...
First and important question. Did you unlock your booloader? If yes, you can install cutom roms. If not, you can't install custom roms.
Did you also try to enter SV mode?
1. Power off phone
2. Press and hold volume up
3. Connect phone by usb to PC
4. Wait few sec
5. SV mode should appear.
When you are in SV mode, you can restore stock rom by official LG program.
Rammar515 said:
First and important question. Did you unlock your booloader? If yes, you can install cutom roms. If not, you can't install custom roms.
Did you also try to enter SV mode?
1. Power off phone
2. Press and hold volume up
3. Connect phone by usb to PC
4. Wait few sec
5. SV mode should appear.
When you are in SV mode, you can restore stock rom by official LG program.
Click to expand...
Click to collapse
I started S/W upgrade, and in upper corner it says Bootloader Status: unlocked. So bootloader is unlocked for sure then..
If i manage to update CWM will that solve my problem with SD card? After that just to flash ZIP from recovery?
O something else?
ratluci said:
I started S/W upgrade, and in upper corner it says Bootloader Status: unlocked. So bootloader is unlocked for sure then..
If i manage to update CWM will that solve my problem with SD card? After that just to flash ZIP from recovery?
O something else?
Click to expand...
Click to collapse
I dont know but you should update cwm to 6.0.4.5+ After it you will be able to install all roms from 4.2-5.0.
Rammar515 said:
I dont know but you should update cwm to 6.0.4.5+ After it you will be able to install all roms from 4.2-5.0.
Click to expand...
Click to collapse
Thanks, now really noob question..
I googled how to update recovery on L9, and found methods with installing some APK, but as i cannot start system how to flash then?
There is 2 ways to install new recovery.
You can flash .zip in old recovery, reset phone and you will have new recovery.
You can also flash new recovery by fastboot. You need to have .img recovery.
Can you reset to fastboot in recovery options?
Rammar515 said:
There is 2 ways to install new recovery.
You can flash .zip in old recovery, reset phone and you will have new recovery.
You can also flash new recovery by fastboot. You need to have .img recovery.
Can you reset to fastboot in recovery options?
Click to expand...
Click to collapse
Not sure how to enter fastboot. Cannot see restart to fastboot in CWM..
You can try to enable adb in recovery and use command "adb reboot oem-unlock"
Rammar515 said:
You can try to enable adb in recovery and use command "adb reboot oem-unlock"
Click to expand...
Click to collapse
I cannot start fastboot, dont know how, something doing wrong. On CWM i only have, install zip with sideload (something like that)
Can i flash to stock rom from S/W menu? And what i need if can?
You need phone + usb + pc + lg flash tool (just download it) Connect your phone with SV mode and let program find rom, download and install it.
Rammar515 said:
You need phone + usb + pc + lg flash tool (just download it) Connect your phone with SV mode and let program find rom, download and install it.
Click to expand...
Click to collapse
Not sure what to try next.
I tried this http://forum.xda-developers.com/showthread.php?t=2085344 stays on 15%, and PC cannot see phone
this http://forum.xda-developers.com/showthread.php?t=2797190 , someone sad that this worked becaause first method didnt (was same problem as mine, how i understaned ..)
and tried this http://forum.xda-developers.com/showthread.php?t=2748384 , stuck after 6 sec (something like that). I readed that maybe BIN was corrupted (because of conversion from KDZ to BIN), now ill try with thid BIN http://uploaded.net/file/j32p8p7y/from/xh3dqq ...
What next.. S/W mode says Bootloader unlocked, and before all this phone was using JB..
I still didn't succeded to recover my phone.
My computer simply cannot see my phone, i tried all tools that were avalible. On 3% to 7% (on updating), just says that phone is not connected.
Strange thing is that i managed to flash V20H_00.kdz two times. Every single time i do the same but only that 2 times flash was successful. One time was with "offline method" and then with "LG flashtool 2014", after that flashing i got dead android with red triangle both times.
Then i wanted to flash v20c_00.kdz , but cannot pass 3% to 7% on flashing AGAIN. I'm frustrated !
I tried to flash on other computer but again, phone is not recognisable.
What to do now?
Can i flash ROM with fastboot ?
UPDATE.
I started upgrade recovery with LGMobile support tool, and finished flashing. But AGAIN i got dead android with red triangle!
Now what to try!?
Update
I even tried to flash ROM on WIN XP, but nothing. Again proces stops on 3% (then quckly) jump to 7%. And thats it.
Strange thing that when i start UPGRADE RECOVERY on Official LG TOOL (i think thats official), program download 500mb+ KDZ and process is successful, but i get Dead Android with red triangle..
Anyone have any advice? What to try?
Hi i have LG P760 L9 it started with stuck on lg logo in boot.
i can't enter to recovery mode by the buttons.its not working.
But i can enter download mode.
when i try to flash stock rom with lg flash tool in download mode with unlocked bootloader to my LG P760 it stuck at %50 and asking for retry.
i tried lg mobile support tool too. its the same and asking for retry only.
i installed all drivers.
i dont know what to do and what happend to my phone.
i searched on topics but they didnt work and i dont know if i can fix that issue by download mode.can you help me please.
Dark1907 said:
Hi i have LG P760 L9 it started with stuck on lg logo in boot.
i can't enter to recovery mode by the buttons.its not working.
But i can enter download mode.
when i try to flash stock rom with lg flash tool in download mode with unlocked bootloader to my LG P760 it stuck at %50 and asking for retry.
i tried lg mobile support tool too. its the same and asking for retry only.
i installed all drivers.
i dont know what to do and what happend to my phone.
i searched on topics but they didnt work and i dont know if i can fix that issue by download mode.can you help me please.
Click to expand...
Click to collapse
Help me please what should i do