Hi all,
I rooted my LG L9 P760 (screen) with JB 4.1.2 and now I want to unlock bootloader, I tryed to unlock from Root Toolkit (markolino631's method) and from android terminal emulator (screen) but the phone still rebbot normally... First time I tryed, I didn't wait 30 minutes from the boot (in this post: plus.google.com/115049428938715274412/posts/CUu6YE3C6C2 Ricardo Cerqueira says: "...let it stay on for at least 30 continuous minutes. This is important!. If you skip this step, you may end up with a permanently locked device.") Any solution to unlock bootloader?
Thanks and sorry for my bad english, i'm italian
Try flashing the stock jellybean kdz again then wait the 30 minutes and pass the command...
-Sent From Cyanogen Moded P769
Ok, I try when I go home...
You might lock it permanently. Try installing with kdz then this http://forum.xda-developers.com/showthread.php?t=2221102
Wysyłane z mojego LG-P760 za pomocą Tapatalk 2
Make sure its connected to wifi/internet, wait 30-60mins..
Related
I have some problems with the screen.so i want to send my phone to LG to repair it.
But i have a rooted lg optimus l9 p760 and i have unlocked bootloader!
Can someone help me to relock it?
You can't atm. But you can try send your phone anyway. I know that in case of Sony they sometimes didn't care about it, maybe you will be lucky with LG.
MahdiNl said:
I have some problems with the screen.so i want to send my phone to LG to repair it.
But i have a rooted lg optimus l9 p760 and i have unlocked bootloader!
Can someone help me to relock it?
Click to expand...
Click to collapse
Did you use "fastboot oem unlock", if so try "fastboot oem lock".
Otherwise you've blown an efuse, can't unblow..
clockcycle said:
Did you use "fastboot oem unlock", if so try "fastboot oem lock".
Otherwise you've blown an efuse, can't unblow..
Click to expand...
Click to collapse
Yes , but it's not working!
You can't lock it again. It is written in unlocking bootloader Thread. You can send it to LG but you may be charged for repair if they will refuse to do it for free because of guarantee rules.
Wysyłane z mojego LG-P760 za pomocą Tapatalk 2
Hello guys , I would like to share with you my problem :
I ve P 760 and i try to unlock bootloader with any method , but without result.
I try to flash several European KDZ files , with different SIM card and PC. When i put the command "adb reboot oem-unlock" , my device reboots normaly in O.S. and the unlock screen didn t apper...despite this i will try to flash x.img and u.img from a unlocked phone , but without reasons..I m desperate and i nedd help !!!!!! Please !!!!
Guys anyone can help me?
Juri Jacopo G said:
Hello guys , I would like to share with you my problem :
I ve P 760 and i try to unlock bootloader with any method , but without result.
I try to flash several European KDZ files , with different SIM card and PC. When i put the command "adb reboot oem-unlock" , my device reboots normaly in O.S. and the unlock screen didn t apper...despite this i will try to flash x.img and u.img from a unlocked phone , but without reasons..I m desperate and i nedd help !!!!!! Please !!!!
Click to expand...
Click to collapse
First flash the European open V20B kdz and make sure you have a signal (you can make calls and etc.).
Next leave your phone on for 30 mins. and then try to unlock
Note: if you have already tried 30 mins and it didn't work, leave it on longer before trying (eg try the unlock after 8 hours)
good luck
Hello !! I already tried to flash a v20b KDZ under section "European Open" , but unfortunately when I go to see the in the phone information appears only " P760v20b " without " EU-XX " acronym . I try to flash several v20b KDZ with the same result...Can we help me to find a valid v20B KDZ ?? Thanks
So you are saying you can't make calls?
Sent from my LGMS769 using xda app-developers app
I m able to make calls and sms !! But the phone just reboots normally after the command "adb reboot oem-unlock"
Juri Jacopo G said:
I m able to make calls and sms !! But the phone just reboots normally after the command "adb reboot oem-unlock"
Click to expand...
Click to collapse
I say factory reset, flash the V20B kdz, enable usb debugging and leave the phone on for several hours before trying to unlock. try the kdz found here, i used the first one http://forum.xda-developers.com/showpost.php?p=43104055&postcount=9
Hello man ! I just tray to flash this KDZ and wait about 23-26 hours but the phone just reboots normally...So what can i do ???
Well the only help I can give you now is to try the P765 V20A India kdz. I'm all out of options, sorry.
Sent from my LGMS769 using xda app-developers app
Juri Jacopo G said:
Hello !! I already tried to flash a v20b KDZ under section "European Open" , but unfortunately when I go to see the in the phone information appears only " P760v20b " without " EU-XX " acronym . I try to flash several v20b KDZ with the same result...Can we help me to find a valid v20B KDZ ?? Thanks
Click to expand...
Click to collapse
I just unlock my P768f boot loader yesterday. Europe Open Link for download V20B is forbidden now, I used V20C and it work fine. Not sure why your phone only reboot to normal mode.
I just follow this thread for P768 http://forum.xda-developers.com/showthread.php?t=2313794. It work at a first try. I'm already on stock JB rom (P768f) for about 2 weeks before unlock bootloader.
Just want to confirm that Europe Open V20C also bootloader unlockable.
Hello artit , then you tried to unlock your bootloader on v20c without reboot the system after flash for 2 weeks ?? So , yesterday i flash v20b KDZ , what do you suggest I wait ? It's possible that my bootloader is corrupt ?
Juri Jacopo G said:
Hello artit , then you tried to unlock your bootloader on v20c without reboot the system after flash for 2 weeks ?? So , yesterday i flash v20b KDZ , what do you suggest I wait ? It's possible that my bootloader is corrupt ?
Click to expand...
Click to collapse
I don't think your bootloader is corrupt. For me, my JB P768f came out about 2 week ago but any P768 is not bootloader unlockable (adb reboot oem-unlock just normal reboot phone). So if P768 user want to unlock their bootloader they must flash P760 V20B rom, as I did.
If you want to try again please flash Europe Open V20C, download link from http://csmgdl.lgmobile.com/swdata/WDLSW/LGP760/ANEUWH/V20c_00/V20C_00.kdz
After flash it reboot your phone, enable usb debug mode and wait about an hour (I also not sure what this does but many people said you must wait) then connect your phone in command prompt try "adb reboot oem-unlock" again.
Thank you so much then I'll try to wait a few hours , if doesn t work again is possible to replace my locked BL with your just unlocked ?? So I should have full guarantee of success.
Juri Jacopo G said:
Thank you so much then I'll try to wait a few hours , if doesn t work again is possible to replace my locked BL with your just unlocked ?? So I should have full guarantee of success.
Click to expand...
Click to collapse
there is no other method to unlock it, some people reported that it helps to have wifi connection before trying to unlock the bootloader
Hello , on sunday i flash v20b KDZ and today i try to unlock with adb reboot orm-unlock but the phone just reboots...wht i m not able.to unlock my phone ??? i think my phone is unlockable
Juri Jacopo G said:
Hello , on sunday i flash v20b KDZ and today i try to unlock with adb reboot orm-unlock but the phone just reboots...wht i m not able.to unlock my phone ??? i think my phone is unlockable
Click to expand...
Click to collapse
You are not turning your phone off at all after you flash the kdz right? You are not suppose to turn off the phone. Not sure if this will help, but one person reported success by leaving his phone connected to the charger for hours before it finally worked for him.
Sent from my LGMS769 using xda app-developers app
Thanks for the reply , so you advice to power off the phone and attach it to charger for a few hours and tray again ?
Juri Jacopo G said:
Thanks for the reply , so you advice to power off the phone and attach it to charger for a few hours and tray again ?
Click to expand...
Click to collapse
No, first flash the kdz (and don't turn it off at all) and leave it on the charger for a couple of hours
http://forum.xda-developers.com/showpost.php?p=41852289&postcount=75
I have already tried this method , but wothout reasons...So what do you suggest i do now ?
Hi guys,
I had been passive all this years in this forum.. many thanks to all contributors in this forum.. which had helped me a lot to root, unlock my bootloader, custom ROM, etc to my various phones, sony xperia, samsung, asus padphone, etc
now I guess it is my turn to contribute.
this L9 P768 of mine to me is the best phone I have so far, cheap, light, powerful enough to my need, battery is not so good though eventhough it is higher capacity compare to other phone in same range but hey.. it is removeable battery !!
last 2-3 months I was happy with STOCK ROM, but 2 days back I want something new, I want custom ROM, especially now someone have released custom Android 4.3
without any research, I applied CUSTOM ROM, and stuck in security error, but after reading I realized this phone is much more powerful than I thought..
I think this phone is UNBRICKABLE
cut story short.. i was able to bring back my phone alive using fastboot mode and now running stock europe open V20C (thank you for the mirror contributor.. and f*ck you LG, I kept getting permission denied and half finished download)
cut story short again... I followed various threads, and stuck in command "adb reboot oem-unlock" my phone was rebooted without getting into bootloader unlock confimation / warning screen
I was using windows xp (with all drivers installed properly, fastboot, adb, etc)
I was frustated like some few of you here that had been trying to unlock bootloader (some even tried for months..)
finally few minutes back, I got my breakthrough, I tried using my "working" laptop that has linux installed and issue command
adb reboot oem-unlock
and phone was rebooted and this time I get the confirmation / warning bootloader unlock screen !
hurray !
so to those who stuck., maybe you should try adb for linux.. here is the version that I have
[[email protected] ~]$ adb version
Android Debug Bridge version 1.0.31
hidden menu is showing my bootloader unlock
Hi people!! I have a BIG PROBLEM, because i live in Argentina, and my L9 it´s called P778g, and have the same specs than the P768, BUT the ROMs of the last don´t work on P778g for nobody in my country (I´m from an hispano parlant forum) and also don´t works the ROMs of P760/P765.
Someone can help my to fix this very big problem? The mobile have v10a ICS, and v20a from the operators of Movistar and Claro.
Is there no way to unlock alternatively, or last, unlocked via fastboot as XPERIA´s phones?
Snowers96 said:
Hi people!! I have a BIG PROBLEM, because i live in Argentina, and my L9 it´s called P778g, and have the same specs than the P768, BUT the ROMs of the last don´t work on P778g for nobody in my country (I´m from an hispano parlant forum) and also don´t works the ROMs of P760/P765.
Someone can help my to fix this very big problem? The mobile have v10a ICS, and v20a from the operators of Movistar and Claro.
Is there no way to unlock alternatively, or last, unlocked via fastboot as XPERIA´s phones?
Click to expand...
Click to collapse
You must unlock bootloader before flash any custom rom. Please visit this thread to unlock bootloader http://forum.xda-developers.com/showthread.php?t=2313794
artit said:
You must unlock bootloader before flash any custom rom. Please visit this thread to unlock bootloader http://forum.xda-developers.com/showthread.php?t=2313794
Click to expand...
Click to collapse
I tyied the steps, but i cant flash v20b Open Europe, because the KDZ Updater says "problem with usb connect of the phone" when i´m flashing this. But i think is because is for P760 phones, and my phone is p778g. Also, the roms of p768 didn´t work on my cellphone, only p778g ROMs
Snowers96 said:
I tyied the steps, but i cant flash v20b Open Europe, because the KDZ Updater says "problem with usb connect of the phone" when i´m flashing this. But i think is because is for P760 phones, and my phone is p778g. Also, the roms of p768 didn´t work on my cellphone, only p778g ROMs
Click to expand...
Click to collapse
I think you can flash P760 rom on ypu phone. As I know only P760 - Europe Open - V20B or V20C can unlock bootloader. I you want to unlock your phone bootloader your must flash it. Their're some people that follow that thread but cannot unlock bootloader. I don't know why. For me it's work at first attempt.
For your problem, please try
- Turn on your phone, connect usb cable, select LG software mode
- In offline flash program select "DIAG" in Phonemode instead of "Emergency" then follow normal offline flash step.
- Your phone should reboot to S/W mode automatically.
After reboot their may be some software error message, you can ignore it. Some thread said that you should wait for about 30 minutes and have your sim and wifi on may make unlock bootloader success. Please give it a try.
artit said:
I think you can flash P760 rom on ypu phone. As I know only P760 - Europe Open - V20B or V20C can unlock bootloader. I you want to unlock your phone bootloader your must flash it. Their're some people that follow that thread but cannot unlock bootloader. I don't know why. For me it's work at first attempt.
For your problem, please try
- Turn on your phone, connect usb cable, select LG software mode
- In offline flash program select "DIAG" in Phonemode instead of "Emergency" then follow normal offline flash step.
- Your phone should reboot to S/W mode automatically.
After reboot their may be some software error message, you can ignore it. Some thread said that you should wait for about 30 minutes and have your sim and wifi on may make unlock bootloader success. Please give it a try.
Click to expand...
Click to collapse
I try this too, but without glory
But, i try to put a CWM Backup of the V20B Europe Open, and works on my phone!!!!
At first time i try to unlock the bootloader without succes, but i try a second time However, in my first try on v20B, my computer detect the OMP44...blabla,
Edit: 2 try fails too
@artit i have question, It is possible to find a better method of unlocking as unlocking via fastboot like XPERIA phones?
I was talking with a colleague Argentine was one of the first to buy the P778g just went to the Argentine market, and apparently could safely install the "v20B Open Europe" like any other ROM it existed, but after you break the screen and it changes to a other "identical" phone, the same thing has happened to his.
There may be a possibility that the method is removed to unlock the bootloader and install any ROM in our P778g?
Snowers96 said:
I try this too, but without glory
But, i try to put a CWM Backup of the V20B Europe Open, and works on my phone!!!!
At first time i try to unlock the bootloader without succes, but i try a second time However, in my first try on v20B, my computer detect the OMP44...blabla,
Edit: 2 try fails too
@artit i have question, It is possible to find a better method of unlocking as unlocking via fastboot like XPERIA phones?
I was talking with a colleague Argentine was one of the first to buy the P778g just went to the Argentine market, and apparently could safely install the "v20B Open Europe" like any other ROM it existed, but after you break the screen and it changes to a other "identical" phone, the same thing has happened to his.
There may be a possibility that the method is removed to unlock the bootloader and install any ROM in our P778g?
Click to expand...
Click to collapse
There is no new unlock bootloader for now. I notice that a lot of people have problem unlock their L9 bootloader. May be there is new way to unlock it in near future. Just wait to see it happen, some dev is working on it.
artit said:
There is no new unlock bootloader for now. I notice that a lot of people have problem unlock their L9 bootloader. May be there is new way to unlock it in near future. Just wait to see it happen, some dev is working on it.
Click to expand...
Click to collapse
I´m really happy to hear this!! I and the rest of Argentine P778g are waiting the liberation
Thanks for your time!
I have succesfully unlock the bootloader following the guide for 768, 768 and 778 are exactly the same, lot of people are having problems unlocking the bootloader for 768 too, still don't know what cold be the reason
Sent from my LG-P778 using xda app-developers app
People!!!! I change to another PC and the KDZ flash and the Unlock Bootloader work fine!!! Thanks for everything!!!
Snowers96 said:
People!!!! I change to another PC and the KDZ flash and the Unlock Bootloader work fine!!! Thanks for everything!!!
Click to expand...
Click to collapse
Glad you got it sorted out.
Snowers96;44025940]People!!!! I change to another PC and the KDZ flash and the Unlock Bootloader work fine!!! Thanks for everything!!!
Click to expand...
Click to collapse
Hi, I got a P778g from personal, and im trying to unlock the bootloader... and i just cant do it...
Can u plz tell me hoy u do it? any guide?
I got the V20A, rooted with the Lelus offline method.
Thx
Hi guys,
Yesterday I both mu lg l9 p760 and flashed 20B kdz.everything goes fine,but when I try to unlock bootloader phone reboots and dont wanna go into fastboot mode,I get normal reboot
I tried metod http://forum.xda-developers.com/showthread.php?t=2221102
Any solution?
dr_jerremy said:
Hi guys,
Yesterday I both mu lg l9 p760 and flashed 20B kdz.everything goes fine,but when I try to unlock bootloader phone reboots and dont wanna go into fastboot mode,I get normal reboot
I tried metod http://forum.xda-developers.com/showthread.php?t=2221102
Any solution?
Click to expand...
Click to collapse
I get this situation too as many others.. we are all waiting for a new method/solution
Try to check wich bootloader version u have... i think is something wrong with LK MAY-2012 version
if u want to check type : 3845#*760* Version Info --> Sw Version Info --> Ap bootloader Version
same problem
I have the same problem, any fix?
I have bootloader LK MAY 2012.
I try every everything.. no success..
maybe someone better.. can help...
For information, my "AP Bootloader Version" is "LK MAY-2012" and I didn't have any issue to unlock my bootloader. So those unlocking issues don't seem to be caused for this reason.
Hi, my phone Sony Xperia Tipo does not turn on when you unlock the bootloader .. I wanted to install the roma http://forum.xda-developers.com/showthread.php?t=2305480
2 times I tried to unlock the phone but always stuttered with the inscription "Sony" and nothing further will not load any. I'm flashing boot.img and did so as a guide rome but always the same; /.
You know what I did wrong maybe?
Sorry so much for my grammar, but nowhere else received a reply and xda is the most popular page.