Hey today i updated my phone to v20a india but when i m trying to unlock bootloader using fast boot my phone doesn't reboot in fastboot....
I tried using adb unlock oem command...
Tell me what to do??????
Sent from my LG-P765 using xda app-developers app
love4u_nav said:
Hey today i updated my phone to v20a india but when i m trying to unlock bootloader using fast boot my phone doesn't reboot in fastboot....
I tried using adb unlock oem command...
Tell me what to do??????
Sent from my LG-P765 using xda app-developers app
Click to expand...
Click to collapse
Your command seems wrong. what exact command you are giving?
Sry my bad not to include the command in post...
Firstly i was using rom toolbox for unlocking,cmw,rooting...
It already contain the adb command...
But that didn't work...
So i tried this thread
forum.xda-developers.com/showthread.php?t=2221102
But that also didn't work....
I think command r right may be there is another for indian version(i guess)....
Sent from my LG-P765 using xda app-developers app
love4u_nav said:
Sry my bad not to include the command in post...
Firstly i was using rom toolbox for unlocking,cmw,rooting...
It already contain the adb command...
But that didn't work...
So i tried this thread
forum.xda-developers.com/showthread.php?t=2221102
But that also didn't work....
I think command r right may be there is another for indian version(i guess)....
Sent from my LG-P765 using xda app-developers app
Click to expand...
Click to collapse
you can reboot to fastboot mode by using "adb reboot oem-unlock"
I trid adb reboot oem-unlock...
But my phone just restarts normally...
Not in fastboot...
Sent from my LG-P765 using xda app-developers app
I have the same situation with you
Sent from my LG-P765 using xda app-developers app
Plz somebody help us.....
Sent from my LG-P765 using xda app-developers app
I you think you are stuck, try Flashing P760 V20B Europe Open. Unlock bootloader permanently and then flash back any P765 rom. Some links in my signature may help you in flashing.
Ok i will try....
Sent from my LG-P765 using xda app-developers app
I have tried for many time, situation remain the same
Sent from my LG-P765 using xda app-developers app
Since i am having trouble downloading v20 europe open version....
Anybody have any other option ....
One more thing my friend has also update his phone same is happening with him also...
Sent from my LG-P765 using xda app-developers app
love4u_nav said:
Since i am having trouble downloading v20 europe open version....
Anybody have any other option ....
One more thing my friend has also update his phone same is happening with him also...
Sent from my LG-P765 using xda app-developers app
Click to expand...
Click to collapse
you may use any europe version's P760 rom to unlock your P765
btw my p765 is unlocked using europe open v20b and now upgraded to p765 v20d HongKong version
I too had the same problem on my P765 Indian version. I tried oem-unlock many times on stock JB India rom but it didn't work.
Then I have flashed JB EUROPE OPEN rom and "adb reboot oem-unlock" worked with the very first attempt (ofcourse kept the phone on for 1 hour). Once bootloader is unlocked it stays unlocked even if we flash another kdz. So, I flashed stock JB India rom to make my phone work perfectly without any (possible) issues.
Then I had trouble installing fastboot drivers on windows xp. Since fastboot drivers are not needed in linux, i just installed ubuntu 13.04 and then installed packages "android-tools-adb" and "android-tools-fastboot" from universe repository.
Then its just few commands away from having custom recovery.
sudo adb devices
sudo adb reboot oem-unlock
sudo fastboot devices
sudo fastboot flash recovery recovery.img
That's it . I now have CWM recovery.
Now i will backup the stock rom and try CM10.1
nfs1mw said:
I too had the same problem on my P765 Indian version. I tried oem-unlock many times on stock JB India rom but it didn't work.
Then I have flashed JB EUROPE OPEN rom and "adb reboot oem-unlock" worked with the very first attempt (ofcourse kept the phone on for 1 hour). Once bootloader is unlocked it stays unlocked even if we flash another kdz. So, I flashed stock JB India rom to make my phone work perfectly without any (possible) issues.
Then I had trouble installing fastboot drivers on windows xp. Since fastboot drivers are not needed in linux, i just installed ubuntu 13.04 and then installed packages "android-tools-adb" and "android-tools-fastboot" from universe repository.
Then its just few commands away from having custom recovery.
sudo adb devices
sudo adb reboot oem-unlock
sudo fastboot devices
sudo fastboot flash recovery recovery.img
That's it . I now have CWM recovery.
Now i will backup the stock rom and try CM10.1
Click to expand...
Click to collapse
I try to flash europe 20c and run the unlock command, still reboot as normal, i dont know why! I use windows 7 but not windows xp, is it related ？
Sent from my LG-P765 using xda app-developers app
cheong12001 said:
I try to flash europe 20c and run the unlock command, still reboot as normal, i dont know why! I use windows 7 but not windows xp, is it related ？
Sent from my LG-P765 using xda app-developers app
Click to expand...
Click to collapse
Insure that you have installed all the LG drivers aswell as Fastboot drivers for ti omap 4430
It could be drivers problem, I had faced similar problems until i installed fasboot drivers on my PC.
Use guide by @markolino631 Instead of typing commands use his one click tool.
It Works Great.
Try flashing P760 Eu open ROM on P765. then try again.
er.davinder said:
Insure that you have installed all the LG drivers aswell as Fastboot drivers for ti omap 4430
It could be drivers problem, I had faced similar problems until i installed fasboot drivers on my PC.
Use guide by @markolino631 Instead of typing commands use his one click tool.
It Works Great.
Try flashing P760 Eu open ROM on P765. then try again.
Click to expand...
Click to collapse
Yes, i certainly did it, but still nothing happen
Sent from my LG-P765 using xda app-developers app
er.davinder said:
Insure that you have installed all the LG drivers aswell as Fastboot drivers for ti omap 4430
It could be drivers problem, I had faced similar problems until i installed fasboot drivers on my PC.
Use guide by @markolino631 Instead of typing commands use his one click tool.
It Works Great.
Try flashing P760 Eu open ROM on P765. then try again.
Click to expand...
Click to collapse
i completely follow your step but still can't be done. i have install all the driver. and i can observe that fastboot driver works well when i restart my phone. i can enter fastboot mode well when using the method stated. however, it reboot as normal and can't unlock the bootloader too. after getting into the hidden menu, it still say that my bootloader is still locked.
i am desperated for all of your help!!!
i have try for four computer to do these procedures.!!
cheong12001 said:
i completely follow your step but still can't be done. i have install all the driver. and i can observe that fastboot driver works well when i restart my phone. i can enter fastboot mode well when using the method stated. however, it reboot as normal and can't unlock the bootloader too. after getting into the hidden menu, it still say that my bootloader is still locked.
i am desperated for all of your help!!!
i have try for four computer to do these procedures.!!
Click to expand...
Click to collapse
if everything else fails, try this, but read carefully and do all steps without skipping any part.
cmahendra said:
if everything else fails, try this, but read carefully and do all steps without skipping any part.
Click to expand...
Click to collapse
in fact, i have tried many times with complete instruction. but still fail.
cheong12001 said:
in fact, i have tried many times with complete instruction. but still fail.
Click to expand...
Click to collapse
I was having the same problem when i had flashed v20a ( Indian) offline. But as battery was draining on JB i decided to go back to ICS.
After few days i updated to JB again, but this time OTA. And to my surprise, when i tried to unlock the bootloader using this method, http://forum.xda-developers.com/showthread.php?t=2221102 , it went through in the 1st attempt :laugh:
Related
Hi people... i have some serious problems... i have flashed recovery somehow...and It works.. everything els i want to flash-something I can flash something not (error 7.. installation aborted),But every time after flashing rom or kernel my phone is black,nothing happens,one vibration and than nothing..black screen,dead phone..can˙t enter recovery or even see boot logo... where is the problem? please help me because I run seus,root,xrec about 8 times a day to fix/solve this problem
piponxs said:
Hi people... i have some serious problems... i have flashed recovery somehow...and It works.. everything els i want to flash-something I can flash something not (error 7.. installation aborted),But every time after flashing rom or kernel my phone is black,nothing happens,one vibration and than nothing..black screen,dead phone..can˙t enter recovery or even see boot logo... where is the problem? please help me because I run seus,root,xrec about 8 times a day to fix/solve this problem
Click to expand...
Click to collapse
There is high chances of a system file being corrupted. Use flashtool to flash ftf fw. Then install any pre rooted kernel through command prompt using fastboot method.
Sent from my LT26i using Tapatalk 2
I forgot to tell, I cant enter fastboot mode... Phone keeps turning on after blue LED comes up,and somehow I can flash dualcore rom somehow... Only that rom but without kernel ofcourse
Sent from my LT26i using xda app-developers app
milton.bain said:
There is high chances of a system file being corrupted. Use flashtool to flash ftf fw. Then install any pre rooted kernel through command prompt using fastboot method.
Can you please give me link for working flashtool, can I use flashtool for x10?
Sent from my LT26i using Tapatalk 2
Click to expand...
Click to collapse
Sent from my LT26i using xda app-developers app
piponxs said:
I forgot to tell, I cant enter fastboot mode... Phone keeps turning on after blue LED comes up,and somehow I can flash dualcore rom somehow... Only that rom but without kernel ofcourse
Sent from my LT26i using xda app-developers app
Click to expand...
Click to collapse
Install usb s1_fastboot drivers.
Sent from my LT26i using Tapatalk 2
Hi guys
Im here cause i tried almost everything to unlock my damm bootloader and i cant. Followed the P768 tutorial for this with the roms V20b and V20c from europe open, waiting around a half hour to do adb reboot oem-unlock, but everytime the phone just reboots.
I want to know if anyone had this and how you do to solve it. Thanks in advance
Sent from my LG-P768 using xda app-developers app
Anyone?
Sent from my LG-P768 using xda app-developers app
I have the USA version sorry aha
Sent from my LG-P769 using Tapatalk 4 Beta
shucrut said:
Hi guys
Im here cause i tried almost everything to unlock my damm bootloader and i cant. Followed the P768 tutorial for this with the roms V20b and V20c from europe open, waiting around a half hour to do adb reboot oem-unlock, but everytime the phone just reboots.
I want to know if anyone had this and how you do to solve it. Thanks in advance
Sent from my LG-P768 using xda app-developers app
Click to expand...
Click to collapse
Have you tried the toolkit posted HERE?
Meda808 said:
Have you tried the toolkit posted HERE?
Click to expand...
Click to collapse
Unfortunatelly yes. Im gonna try something tomorrow morning. If i get success, i'll create a new post. If not, will cry very very loud. Thanks for the answers
Lelus said somewhere that only some carriers allow unlocking bootloader, trust me it s true, I tried unlocking on various firmwares, every time phone just reboots. I was finally able to unlock on v20A indian. But others were successful in unlocking on firmwares on which I was unsuccessful. And some waited for over 11hours and then they were able to unlock. So give a try once more. :thumbup:
Sent from my LG-P760 using xda app-developers app
Gh0sT.RPG said:
Lelus said somewhere that only some carriers allow unlocking bootloader, trust me it s true, I tried unlocking on various firmwares, every time phone just reboots. I was finally able to unlock on v20A indian. But others were successful in unlocking on firmwares on which I was unsuccessful. And some waited for over 11hours and then they were able to unlock. So give a try once more. :thumbup:
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
I'm just a little confused about this waitng time: The phone needs to be connected to pc in lg mode for 30min or the phone just needs to be with signal and internet connection for over 30 min and then connect to pc and do ad reboot oem-unlock?
Thanks for replying
I'm having the same exact problem...
I can't root/unlock either...
Still no solution for me
Sent from my LG-P768 using xda app-developers app
same issues here
I have the p769 with v20f and I have not been able to find a way too unlock my bootloader either. Help would be much appreciated.
I think the problem for some, is that the u-boot is not getting replaced while performing the offline flash. Try extracting the u-boot from the kdz and flash with fastboot to the system.
Run offline flash of 20b kdz and when the phone boots up, turn it back off and flash the u-boot you extracted from 20b, then wait 30 min (I waited longer) and try.
Sent from my LG-P769 using xda app-developers app
kuma82 said:
I think the problem for some, is that the u-boot is not getting replaced while performing the offline flash. Try extracting the u-boot from the kdz and flash with fastboot to the system.
Run offline flash of 20b kdz and when the phone boots up, turn it back off and flash the u-boot you extracted from 20b, then wait 30 min (I waited longer) and try.
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
->installed 20b open europe
->extracted u-boot from kdz file
->flashed u-boot.img
->waited 42 minutes
->tried to unlock bootloader
Still doesn't work :/
Xerdox said:
->installed 20b open europe
->extracted u-boot from kdz file
->flashed u-boot.img
->waited 42 minutes
->tried to unlock bootloader
Still doesn't work :/
Click to expand...
Click to collapse
Can you make calls on the 20b kdz
Sent from my LG-P769 using xda app-developers app
kuma82 said:
Can you make calls on the 20b kdz
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Yes, I can.
kuma82 said:
I think the problem for some, is that the u-boot is not getting replaced while performing the offline flash. Try extracting the u-boot from the kdz and flash with fastboot to the system.
Run offline flash of 20b kdz and when the phone boots up, turn it back off and flash the u-boot you extracted from 20b, then wait 30 min (I waited longer) and try.
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
I flashed 20B u-boot but same result. I think maybe i need to stop trying, at least by now, cause im not seeing what else i can do. But if anyone has more suggestions, im ready to try
Thanks for the replies
Xerdox said:
->installed 20b open europe
->extracted u-boot from kdz file
->flashed u-boot.img
->waited 42 minutes
->tried to unlock bootloader
Still doesn't work :/
Click to expand...
Click to collapse
Did you type adb devices in command prompt? And can your comp detect your phone?
Sent from my LG-P769 using Tapatalk 4
geeshiet said:
Did you type adb devices in command prompt? And can your comp detect your phone?
Sent from my LG-P769 using Tapatalk 4
Click to expand...
Click to collapse
yes, phone was detected. When reboot oem-unlock was given the phone rebooted normally
shucrut said:
yes, phone was detected. When reboot oem-unlock was given the phone rebooted normally
Click to expand...
Click to collapse
Okay, before you do "adb reboot oem-unlock", move "Android" folder from your sdcard0 to your C: drive. Then open command prompt and type "cd c:/Android" after that type adb reboot oem-unlock.
Sent from my LG-P769 using Tapatalk 4
geeshiet said:
Okay, before you do "adb reboot oem-unlock", move "Android" folder from your sdcard0 to your C: drive. Then open command prompt and type "cd c:/Android" after that type adb reboot oem-unlock.
Sent from my LG-P769 using Tapatalk 4
Click to expand...
Click to collapse
im going to try. Right now im doing the procedure to falsh 20b again, after about an hour i will post the result
shucrut said:
im going to try. Right now im doing the procedure to falsh 20b again, after about an hour i will post the result
Click to expand...
Click to collapse
I copied Android from sdcard to C:/ but theres nothing there, i mean adb etc. Take a look:
I need to move adb files to this folder?
Hi,
I had my P769(T-mobile) running v20f for a while, everything was fine till I tried to unlock the bootloader yesterday......
I followed the http://forum.xda-developers.com/showthread.php?t=2370835, but was not aware that the bootloader unlock was unsuccessful before I used fastboot to install the cwm recovery. Then.....I got the security error when I tried to reboot the phone.
Now fastboot can connect to the phone and reflash x-loader and uboot with no problem, but I cannot get my phone into s/w upgrade mode no matter what key-combination I try...... of course the LG update tool would connect to the phone neither.....
Anyone could help me fix it? Thanks!
http://forum.xda-developers.com/showthread.php?t=2468216
You can try the recovery.img method. If that doesn't work, there is another way in that post.
Sent from my LG-P769 using XDA Premium 4 mobile app
Thank you!
But it is weird no matter what method used, I cannot get into S/W update mode........
LaDY Vengeance said:
http://forum.xda-developers.com/showthread.php?t=2468216
You can try the recovery.img method. If that doesn't work, there is another way in that post.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
xddy1979 said:
Thank you!
But it is weird no matter what method used, I cannot get into S/W update mode........
Click to expand...
Click to collapse
Take out your battery connect to your pc with battery out...hold volume up and power. you might need to hold it for a few seconds after you see the s/w screen. What version is you phone? It happened to me on 20h.
Hi guys! I have the LG P760 with V20C OPEN MARKET (Europe) official stock firmware. In the firmware's changelog I read that the bootloader is unlocked by default, but it isn't true.
I have tried to unlock bootloader using fastboot tool from command line, but after processing the phone reboot in normal mode.
How do I unlock the bootloader? I have the root and CMW on my phone, but stock firmware
BlackRam_ said:
Hi guys! I have the LG P760 with V20C OPEN MARKET (Europe) official stock firmware. In the firmware's changelog I read that the bootloader is unlocked by default, but it isn't true.
I have tried to unlock bootloader using fastboot tool from command line, but after processing the phone reboot in normal mode.
How do I unlock the bootloader? I have the root and CMW on my phone, but stock firmware
Click to expand...
Click to collapse
This generally works, i mean it worked for everyone
Just connect phone put it in usb debugging and software mode and run commands..
Btw try wiping data and cache.
Uninstall and then install every lg driver but first delete every folder left behind and if nothing works flash the v20b or v20c kdz and try again...
Sent from my LG-P765 using XDA Premium 4 mobile app
love4u_nav said:
This generally works, i mean it worked for everyone
Just connect phone put it in usb debugging and software mode and run commands..
Btw try wiping data and cache.
Uninstall and then install every lg driver but first delete every folder left behind and if nothing works flash the v20b or v20c kdz and try again...
Sent from my LG-P765 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Nothing, I tried again. I have left only re-flash v20c. Before the wiping, I should save my data by Nandroid Backup or backup App from Titanium Backup?
Buddy just save ur app data with any app like go backup etc then do nandroid backup and then reflash...
Sent from my LG-P765 using XDA Premium 4 mobile app
love4u_nav said:
Buddy just save ur app data with any app like go backup etc then do nandroid backup and then reflash...
Sent from my LG-P765 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I read that my phone isn't unlockable because I bought this device recently. Is it true or not true?
(I bought its on June 2013)
BlackRam_ said:
I read that my phone isn't unlockable because I bought this device recently. Is it true or not true?
(I bought its on June 2013)
Click to expand...
Click to collapse
All P760 are unlockable. I think all P765 are unlockable too. Only some P768 and P769 are not unlockable (for now).
BlackRam_ said:
Hi guys! I have the LG P760 with V20C OPEN MARKET (Europe) official stock firmware. In the firmware's changelog I read that the bootloader is unlocked by default, but it isn't true.
I have tried to unlock bootloader using fastboot tool from command line, but after processing the phone reboot in normal mode.
How do I unlock the bootloader? I have the root and CMW on my phone, but stock firmware
Click to expand...
Click to collapse
try with this thread http://www.htcmania.com/showthread.php?t=702752 you may find it
Hey
so my computer, running Win7Pro x64, is not recognizing my phone (HTC DNA verizon) in fastboot mode. it can see it in ADB both in android and recovery.
i'm trying to either follow moonshine or rumrunner to get my phone to go into s-off so that i'll be able to install the ROM i want.
little back story -
my daughter (11 months) was playing with a baby app and got into the phone settings and somehow made it so the notification bar was gone (though the settings still said it should be there) and also made it so the UI kept crashing. i tried reinstalling my ROM didn't correct it so i reset bask to factory. it got it back up and working
at this point i noticed there is an update for my ROM and so i went to install it and it got stuck at the boot screen. so i followed some tips from a guy in the ROM thread and sideloaded stock so i can attempt to go s-off. this is where i am now.
i'm not sure why fastboot is not working correctly. anyone have any ideas?
When you plug your phone in does it say fastboot USB
Sent from my dlx using XDA Premium 4 mobile app
thayl0 said:
When you plug your phone in does it say fastboot USB
Sent from my dlx using XDA Premium 4 mobile app
Click to expand...
Click to collapse
yes it does
trinity343 said:
yes it does
Click to expand...
Click to collapse
Have you tried reinstalling ask? Just to make sure some files that requires fastboot hadvnt gone missing
Sent from my dlx using XDA Premium 4 mobile app
thayl0 said:
Have you tried reinstalling ask? Just to make sure some files that requires fastboot hadvnt gone missing
Sent from my dlx using XDA Premium 4 mobile app
Click to expand...
Click to collapse
yeah i did. on this particular computer it was a brand new installation as well. though i suppose i could try again just to see what happens.....
So if u boot Ur phone normal... It will pop up Ur sdcard
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thayl0 said:
So if u boot Ur phone normal... It will pop up Ur sdcard
Sent from my dlx using XDA Premium 4 mobile app
Click to expand...
Click to collapse
sometimes.
i did find that it was loading fine on my laptop. it was my desktop that wasn't working correctly. laptop recognizes the phone in fastboot.
Are you typing "fastboot devices" or "adb devices" when your phone is in fastboot?
Sent from my HTC6435LVW using XDA Premium 4 mobile app
jnorrisman said:
Are you typing "fastboot devices" or "adb devices" when your phone is in fastboot?
Sent from my HTC6435LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Fastboot devices. I'm only hitting adb devices when in recovery side load or when android is running
Sent from my HTC6435LVW using xda app-developers app
yeah... don't know why but it just wasn't working on my desktop. i connected to my laptop and it worked fine. guess my laptop will forever be my android 'hacking' computer even though it's 5 years older then my desktop... eh who knows. i'm good now though this thread can be closed
same problem
when i try to update the phone manually using win 8.1 , the phone is not recognised after the command adb reboot bootloader, when i give the next command fastboot oem rebootRUU it says waiting for the device , please help me
schoolguy_10 said:
when i try to update the phone manually using win 8.1 , the phone is not recognised after the command adb reboot bootloader, when i give the next command fastboot oem rebootRUU it says waiting for the device , please help me
Click to expand...
Click to collapse
Windows 8.1 broke the fastboot drivers. AFAIK there is no workaround or fix. Use another computer.
Update... you can go back to windows 8.0 by going to >settings >change pc settings, then I think it's the middle option to restart system and saves your files. This got me back to windows 8.0 and now my fastboot drivers work again.
i am also unable to go into fastboot mode,,but surprisingly adb recognized my devices,,but when i type "adb reboot bootloader" after that i get an error USB malfunctioned !!!,,please help me to unlocked my bootloader??? HTC DROID DNA,HBOOT 1.54.00 ,Firmware 3.06,,os4.2.2, sence 5