Q: bootloader relock(769) - LG Optimus L9 P760, P765, P768, P769

So I unlocked it for the 769..flashed cm sucessfully
...then went to stock with flashing a kdz. Seems boot loader is relocked on stock but I read somewhere its only temporary, can't remember where..so how do I unlock it again? Without the whole kdz 20b europe process again.. I know its locked cause I got security error when flashing recovery/ROM..got it back with fastboot
Also hidden menu says locked...
However sw upgrade mode still says boot loader status unlocked..
Sent from my LG-P769 using xda app-developers app

I envy you so much, why in the world would you go through all of that simply to relock?

matthewstice said:
So I unlocked it for the 769..flashed cm sucessfully
...then went to stock with flashing a kdz. Seems boot loader is relocked on stock but I read somewhere its only temporary, can't remember where..so how do I unlock it again? Without the whole kdz 20b europe process again.. I know its locked cause I got security error when flashing recovery/ROM..got it back with fastboot
Also hidden menu says locked...
However sw upgrade mode still says boot loader status unlocked..
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Hi matthewstice, I think that your bootloader is only apparently locked, you need JB roms (or at least load JB u-boot and x-loader with fastboot)... , I'm not sure, but I read something about it here, just don't remember the link.
Cheers. Good luck.
Edited: (#20)
http://forum.xda-developers.com/showthread.php?p=39359227
Sent from my LG P76020L-EUR-XX unlocked and rooted

The idea wasn't to relock the boot loader..
Its unlocked on sw upgrade mode still when I flash new kdz....it says.. Boot loader status unlocked..
Confusing I know
Unlocking the boot loader took me 5 minutes..
"All that trouble" u say?
Sent from my LG-P769 using xda app-developers app

matthewstice said:
The idea wasn't to relock the boot loader..
Its unlocked on sw upgrade mode still when I flash new kdz....it says.. Boot loader status unlocked..
Confusing I know
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Hi matthewstice, you could try flashing JB kdz ...
Cheers. Good luck.
Sent from my LG P76020L-EUR-XX unlocked and rooted

I'm already on jb.. 21d
Sent from my LG-P769 using xda app-developers app

Related

r800x ota upate now live

It disables the auto brightness yay. Unlock bootloaders do not update will brick ur plat.
should be in the general section. good man anyways
Hasn't this been live for a few days and there is already a thread on this in general.
Sent from my R800x using Tapatalk
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
for serial, it really bricks your phone! I had to get a replacement because of this crap. Do not do it...however, now that i got a replacement for that phone, i can say it is better. I dont know why i am still writing in caps. I am yelling the first sentence though. Take it seriously!!! @@@@@@@@@@@@@@@@@@@@@@@@@@@@@
doua27 said:
it disables the auto brightness yay. Unlock bootloaders do not update will brick ur plat.
Click to expand...
Click to collapse
Cubsfan3493 said:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
for serial, it really bricks your phone! I had to get a replacement because of this crap. Do not do it...however, now that i got a replacement for that phone, i can say it is better. I dont know why i am still writing in caps. I am yelling the first sentence though. Take it seriously!!! @@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Click to expand...
Click to collapse
I forgot to relock and it did brick but following the UNBRICKING thread i got it back working. RELOCK bootloader then update then UNLOCK and REROOT all works fine now of course after root probably best to relock bootloader anyway just incase.
Post the ftf file please
Sent from my R800i using XDA App
Cat_On_Droid said:
Post the ftf file please
Sent from my R800i using XDA App
Click to expand...
Click to collapse
It's in the first post of the relock thread
Not the relock one, the 2.3.4 r800x ftf
Sent from my R800i using XDA App
Once we have an .ftf of the new 2.3.4 VZW OTA update we will be able to flash that via fastboot, and re-root while keeping our bootloader unlocked?
With flashtool not fastvoot, and yes
Sent from my R800i using XDA App
Yeah, flashtool. Haha.
So I relocked my bootoader, and now I want to unlock it again, it fail. I even tried to just use fastboot commands to boot into recovery and it comes back as
failed phone must be rooted." I did use flashtool to reflash back to stock r800x firmware 2.3.2 I dont know what it s going on. I have flashed my phone before and unlocked the bootloader but now it wont.
I relocked my bootlaoder to ota to 2.3.3. but decided to go back to 2.3.2. for the time being.
Any ideas why this is happening?
tried to unlock the bootloader and it fails everytime. Using fastboot commands for recoveryPLAY comes back with a "phone must be rooted" line.

[METHOD?] Relock the bootloader (unlocked with test point method)

Hey guys.
Two days ago i have flashed back my SK17i to stock rom.
I updated from FOTA.
I didn't know i must relock bootloader before updating from FOTA, so i bricked my phone.
After 2 minutes of deep panic, i've flashed the relock .ftf file, but it won't work on phones unlocked with test point.
So, i found a way to relock bootloader and go back to stock. (On forums i didn't see any guide regarding the method to relock bootloaders unlocked by test point)
I've done in this way:
1) Flashed stock kernel
2) Flash the .ftf relock file
3) With S1Tool hit restore
The phone is now bootloader locked, without losing of DRM!
Sent from my SK17i using XDA App
could you please give more info about that i was unlocked my st18i and than i flash stock firmware with wolan server and than i rooted my device but i do not know how i can relock it. I tried flashtool and relock.ftf but the program can't see loader.bin it just saw preset.ta and i afraid to do that please help me to relock my phone...
xSiRiNx said:
could you please give more info about that i was unlocked my st18i and than i flash stock firmware with wolan server and than i rooted my device but i do not know how i can relock it. I tried flashtool and relock.ftf but the program can't see loader.bin it just saw preset.ta and i afraid to do that please help me to relock my phone...
Click to expand...
Click to collapse
How did you unlocked? Point test or software method?
Sent from my SK17i using XDA App
unlocked with the key method at official website but the main problem is flashtool program couldn't show the loader.sin it only saw preset.ta ido not understand why?
xSiRiNx said:
unlocked with the key method at official website but the main problem is flashtool program couldn't show the loader.sin it only saw preset.ta ido not understand why?
Click to expand...
Click to collapse
Did you tried to download the latest version of flashtool?
Also, try to re-download the ftf file from another mirror, you should able to relock bootloader.
Sent from my SK17i using XDA App
does it means with the bootloader locked using this method, we could update fota after that?
paijho158 said:
does it means with the bootloader locked using this method, we could update fota after that?
Click to expand...
Click to collapse
Yes, if you use this method, you can use fota!
(I used it)
Sent from my SK17i using XDA App
cappyt said:
yes, if you use this method, you can use fota!
(i used it)
sent from my sk17i using xda app
Click to expand...
Click to collapse
dont use fota update for test point method..for some works for some dosent..for me it wont work..use pc companion to update..its safe..
CappyT said:
Hey guys.
Two days ago i have flashed back my SK17i to stock rom.
I updated from FOTA.
I didn't know i must relock bootloader before updating from FOTA, so i bricked my phone.
After 2 minutes of deep panic, i've flashed the relock .ftf file, but it won't work on phones unlocked with test point.
So, i found a way to relock bootloader and go back to stock. (On forums i didn't see any guide regarding the method to relock bootloaders unlocked by test point)
I've done in this way:
1) Flashed stock kernel
2) Flash the .ftf relock file
3) With S1Tool hit restore
The phone is now bootloader locked, without losing of DRM!
Sent from my SK17i using XDA App
Click to expand...
Click to collapse
brov dont really understand dis, please break it down a little bit!
I just registered to confirm this method works. I foolishly allowed a FOTA yesterday and bricked my phone. It was unlocked via testpoint so the relock method didn't work, even though I tried it! I also tried flashing with S1tool with generic firmware and that didn't work. Then just out of curiousity/desperation I clicked on the RESTORE button in S1 and my phone actually started but was now locked again. I re-did the testpoint unlock this morning so now my phones fully updates and working with my SIM of choice.
I don't know if you need to do all the flashing as it may just be the RESTORE that does the trick. I definitely won't be allowing any OTA from now on. Lesson learned!
Just to confirm, so long as I do the update via PCCompanion or SEUS software I wont need to do all this?
Files to download please?
snaky90 said:
Files to download please?
Click to expand...
Click to collapse
What files?
If you unlocked your bootloader with test point, no need to flash anything, just press restore button in s1tool.
anyone tried this method to relock the bootloader which unlocked by test point method and still have the sim/network unlock
CappyT said:
Hey guys.
Two days ago i have flashed back my SK17i to stock rom.
I updated from FOTA.
I didn't know i must relock bootloader before updating from FOTA, so i bricked my phone.
After 2 minutes of deep panic, i've flashed the relock .ftf file, but it won't work on phones unlocked with test point.
So, i found a way to relock bootloader and go back to stock. (On forums i didn't see any guide regarding the method to relock bootloaders unlocked by test point)
I've done in this way:
1) Flashed stock kernel
2) Flash the .ftf relock file
3) With S1Tool hit restore
The phone is now bootloader locked, without losing of DRM!
Sent from my SK17i using XDA App
Click to expand...
Click to collapse
hey, what is ur method to unlock ur BL via paid version or free?
if free , can you access the fastboot mode??

[Q] Flashing Kernel in WT19i

I want to Flash custom Kernels in my phone which is a wt19i . Can someone tell me how to do that
There are many post that teach you this.
First unlock your bootloader and you can flash the boot.img or ftf with either fasrboot or flashtool
Sent from my Xperia Mini Pro using XDA
TheGreatNoob said:
I want to Flash custom Kernels in my phone which is a wt19i . Can someone tell me how to do that
Click to expand...
Click to collapse
Check out this thread:
SE Bootloader Unlocking v1.6 by quangnhut123
hope this helps!
It's your phone sim locked?
If it is then: do you have access to fastboot mode?? ( turn off your phone hold the volume up key and connect the phone to your computer without letting go of the key, the notification led should turn blue. That is fastboot.)
If yes then you will need to unlock your bootloader either the official way here http://unlockbootloader.sonymobile.com or the test point method here http://forum.xda-developers.com/showthread.php?t=1285285.
If you don't have access to fastboot then you will need to simunlock your phone first and as of what I know and at this moment you will need to pay for it.
Once you unlocked your bootloader you have to flash the kernel of your choice using flashtool here http://forum.xda-developers.com/showthread.php?t=1351309
You cannot enter fastboot if bootloader is locked.
Sent from my WT19i using xda premium
Someguyfromhell said:
You cannot enter fastboot if bootloader is locked.
Sent from my WT19i using xda premium
Click to expand...
Click to collapse
this is the best answer
Someguyfromhell said:
You cannot enter fastboot if bootloader is locked.
Sent from my WT19i using xda premium
Click to expand...
Click to collapse
well i know of people able to go into fastboot with locked bootloader the problem is when you have a sim lock and the bootloader unlock allowed: no message in the service menu then you will have to pay to unlock the sim along with the fastboot.

[Q] Relock bootloader

Hello,
is it possible to relock bootloader after ulocking it? I need it due to the warranty.
in short, No. please search the forum for details, as this is discussed.
i suggest you just try the luck sending the phone in and not mention anythong about the bootloader. of course should flash to stock rom if that still can be done
Sent from my LG-P769 using xda premium
@stanislavdavid
Why you want the warranty? Want to sell it later? Or did it already got any fault?
mrmathematica said:
in short, No. please search the forum for details, as this is discussed.
i suggest you just try the luck sending the phone in and not mention anythong about the bootloader. of course should flash to stock rom if that still can be done
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
I think, he did not say he is sending to service center. He just said he needs it for warranty (in future).
See how smart these new pals are. May be we are all idiots to unlock it without giving a second thought. lolz
I do not have yet any fault, I just want to try alternative rom and I want to have way back to stock rom
My last phone had after 3 month of use some problem and I must return it. So I just want to know if it is possible
I thought that flashing the stock u-boot & x-boot will re-lock the bootloader.
http://forum.xda-developers.com/showpost.php?p=37250265&postcount=10
http://forum.xda-developers.com/showpost.php?p=39761686&postcount=30
Maybe this should be in a sticky post somewhere. I have seen a few people ask about re-locking the bootloader.
If this works, we should start collecting u-boot & x-boot images.
There is no way to relock bootloader. Here is good post about bootloader and omap4430, it applies to L9s. In our case ics xloader ,uboot or both simply don't recognize that bootloader had been unlocked and it just appears locked.
I see. Thanks you.
So, you guys with unlocked bootloader, have no problem with fact that your devices have no warranty?
If you don't mention the unlocked bootloader to the customer service and your device has an unrooted stock ROM, there is only a few chance that they check the bootloader if it is for an hardware issue.
It only requires a little bit luck .
If i will make root by this:
http://forum.xda-developers.com/showthread.php?t=2173465
With locked bootloader, then install cwm. May I then install cyanogenmod and if something goes wrong may i return to original stock rom together with warranty?
Sent from my LG-P760 using xda app-developers app
stanislavdavid said:
If i will make root by this:
http://forum.xda-developers.com/showthread.php?t=2173465
With locked bootloader, then install cwm. May I then install cyanogenmod and if something goes wrong may i return to original stock rom together with warranty?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
cwm requires unlocked bootloader
I think you need to install the "CWM Recovery" bootloader to flash a custom ROM. And with a locked bootloader, you can only have a bootloader signed by LG (not a "CWM Recovery" one).
However, you can try this : http://forum.xda-developers.com/showthread.php?t=2095825
It is a "CWM Recovery" which is not directly placed inside the bootloader (instead, it adds a step on Android start). When I tried it on my P760 (when it still had a locked bootloader), it failed (but you can still try).
OperationNT said:
I think you need to install the "CWM Recovery" bootloader to flash a custom ROM. And with a locked bootloader, you can only have a bootloader signed by LG (not a "CWM Recovery" one).
However, you can try this : http://forum.xda-developers.com/showthread.php?t=2095825
It is a "CWM Recovery" which is not directly placed on in the bootloader. When I tried it on my phone, it failed (but you can still try).
Click to expand...
Click to collapse
Actually that recovery will not work on jb,
Ok, that's why it failed for me.
Now, you have your answer, you must stay on ICS if you wish to keep your bootloader locked with CWM Recovery.
However, I would be curious to know what happens if a JB ROM (custom or stock) is installed through using this "locked bootloader CWM Recovery".
OperationNT said:
Ok, that's why it failed for me.
Now, you have your answer, you must stay on ICS if you wish to keep your bootloader locked with CWM Recovery.
However, I would be curious to know what happens if a JB ROM (custom or stock) is installed through using this "locked bootloader CWM Recovery".
Click to expand...
Click to collapse
I received "Security Error" when attempting to boot when I tried this a while back. It just won't work because the kernel needs to be signed by LG.
So may I at least root phone or even root is not possible without unlocked bootloader?
Sent from my LG-P760 using xda app-developers app
Root is possible with boolloader, try this method (it worked fine for me while I wasn't on an unlocked bootloader) :
http://forum.xda-developers.com/showthread.php?t=2173465
relocked
stanislavdavid said:
Hello,
is it possible to relock bootloader after ulocking it? I need it due to the warranty.
Click to expand...
Click to collapse
You do not know resealed on, it is true that and forth they have forgotten to write never to can be relocked
sometihing new
Hello, does anybody know something new about bootloader relock?
stanislavdavid said:
Hello, does anybody know something new about bootloader relock?
Click to expand...
Click to collapse
Not possible yet.

How to tell if i unlocked my bootloader on lg p769

I received a warranty exchange and it came with 20f preinstalled so i did adb reboot oem-unlock. How can i tell if my BL is unlocked? No root
Get into software upgrade mode. Turn the phone off. Plug the phone into your computer, and hold volume up and down (might be another combination like volume up and home. Keep trying.)
If the bootloader is unlocked, it should say Bootloader unlocked on the top left of the screen. If not, it will say nothing.
Or just dial 3845#*769# and scroll all the way down, hit bootloader unlock check then click the button, too easy
Sent from my LG-P769 using xda app-developers app
Nathan.7118391 said:
Or just dial 3845#*769# and scroll all the way down, hit bootloader unlock check then click the button, too easy
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
That won't work...
-Sent From My Unlocked Optimus L9
carloswii5 said:
That won't work...
-Sent From My Unlocked Optimus L9
Click to expand...
Click to collapse
Yeah it does, just type it in and scroll down then you hit the bootloader and you will be able ti see if your bootloader is unlocked or not. It won't unlock the bootloader but you can see if its locked or not.
Sent from my LG-P769 using xda app-developers app
Nathan.7118391 said:
Yeah it does, just type it in and scroll down then you hit the bootloader and you will be able ti see if your bootloader is unlocked or not. It won't unlock the bootloader but you can see if its locked or not.
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
No, that does not work (well on some roms, with the proper u-boot it will). The best way to check is putting phone in s/w upgrade mode. If it's unlocked (and on a V20F, V20H or a unlockable jellybean U-boot) it will say Unlocked Bootloader.
kuma82 said:
No, that does not work (well on some roms, with the proper u-boot it will). The best way to check is putting phone in s/w upgrade mode. If it's unlocked (and on a V20F, V20H or a unlockable jellybean U-boot) it will say Unlocked Bootloader.
Click to expand...
Click to collapse
Did not know that, I usually just dial and check. Thanks kuma and Carlos!
Sent from my LG-P769 using xda app-developers app

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