[Help] Unlock BL on P769 - LG Optimus L9 P760, P765, P768, P769

Are there any new developments on the P769 bootloader unlock problem? I have tried all the steps, flash V20B, wait 30 mins and adb oem unlock, nothing works. FU LG.

Did u flash the radio.zip from the sdcard files? Did u leave screen on while waiting the entire time?
Sent from my LG-P769 using xda app-developers app

matthewstice said:
Did u flash the radio.zip from the sdcard files? Did u leave screen on while waiting the entire time?
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Yes, I flashed the radio.zip and connected to wifi, but do we need to keep the screen on the entire time?

That's what worked for me first attempt. strong WiFi strong radio
Signal screen on..1 hour..unlock..left phone plugged into PC screen on entire time
Sent from my LG-P769 using xda app-developers app

Notes It seems if you restore your phone tool using LG update tool .. it relocks the bootloader (assuming) in my case i had done it since 10.1 had BT issues ..went back to stock ..and unlocked it again today This is what you do :
what ever rom your on doesnt matter .
1.first Root the phone many way to root the phone .. then install busybox from market and install CWM (using the L9installer apk..Then enable wifi and debugging mode .also enable touches do these before proceding the KDZ!
Then install
2.then using the V20F_00.kdz your root the phone again like in step 1 install busybox from market and install CWM.then apply the touch screen fix .
You should have a working phone now with radio signal.Then wait about 40 mins then do oem-unlock command .. Note it will not boot into LG logo phone will just reboot .. Then to confirm if the bootloader is unlocked go to S/W mode on top it should say bootloader status is unlocked .just did this and flashed CM10.2
Maybe ill clean up this post soon if its too confusing ..

So what you mean is that it doesn't go into the fastboot screen to unlock the bootloader?
Sent from my LG-P769 using XDA Premium 4 mobile app

LaDY Vengeance said:
So what you mean is that it doesn't go into the fastboot screen to unlock the bootloader?
Sent from my LG-P769 using XDA Premium 4 mobile app
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Click to collapse
No, it just reboots no fastboot screen, no nothing, just turns back on to the lockscreen. LG Y U DO DIS?!

rakeshdas said:
No, it just reboots no fastboot screen, no nothing, just turns back on to the lockscreen. LG Y U DO DIS?!
Click to expand...
Click to collapse
LG would never do this to Nexus users. Imagine the outrage from both the devs and average users?
Sent from my LG-P769 using XDA Premium 4 mobile app

LaDY Vengeance said:
LG would never do this to Nexus users. Imagine the outrage from both the devs and average users?
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
HAHA Yes! But I am going to keep trying. MAYBE I will get lucky? :fingers-crossed:

You know, I just found out that the hard reset might be causing a semi-lock of the bootloader. I'm going to try flashing the kdz twice....ugh.
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LaDY Vengeance said:
You know, I just found out that the hard reset might be causing a semi-lock of the bootloader. I'm going to try flashing the kdz twice....ugh.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
What do you mean by a Semi-lock?

LaDY Vengeance said:
You know, I just found out that the hard reset might be causing a semi-lock of the bootloader. I'm going to try flashing the kdz twice....ugh.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Good Luck!
And may the force be with you!
sent from my rooted P769 v20f
I'm on YouTube (Toa Kaidoa)

rakeshdas said:
What do you mean by a Semi-lock?
Click to expand...
Click to collapse
It means that the euro kdz becomes partially locked at this point. According to what my friend told me, when the unlock command gets sent, LG checks the status of the bootloader. If they notice a semi-lock, they lock it down.
If that's the case, they are so evil.
Sent from my LG-P769 using XDA Premium 4 mobile app

Since u ppl have tried unlocking on v20 b kdz, how abt giving a try for v20 a Indian kdz for 765 once? Cos I was unsuccessful on v20 b,c,d. Tried for a week n was able to unlock on v20a. Who knws mayb u might turn out lucky lik me
Sent from my LG-P765 using xda app-developers app

Gh0sT.RPG said:
Since u ppl have tried unlocking on v20 b kdz, how abt giving a try for v20 a Indian kdz for 765 once? Cos I was unsuccessful on v20 b,c,d. Tried for a week n was able to unlock on v20a. Who knws mayb u might turn out lucky lik me
Sent from my LG-P765 using xda app-developers app
Click to expand...
Click to collapse
i been trying v20a all day and i cant get it to flash .. the lg program gets error at 6%

txtmikhail said:
i been trying v20a all day and i cant get it to flash .. the lg program gets error at 6%
Click to expand...
Click to collapse
Me too. I can flash every kdz, only v20a not I get an error.
Now i download , and make a try for spanish v20a , maybe

txtmikhail said:
i been trying v20a all day and i cant get it to flash .. the lg program gets error at 6%
Click to expand...
Click to collapse
You need to use fastboot....lol....how many times have I posted that? Anyway, flash ICS u and x with fastboot.
Sent from my LG-P769 using XDA Premium 4 mobile app

LaDY Vengeance said:
You need to use fastboot....lol....how many times have I posted that? Anyway, flash ICS u and x with fastboot.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
This is why we want to flash v20a, to try to unlock. Cause we cant enter to fastboot. (just normal reboots.)

LaDY Vengeance said:
You need to use fastboot....lol....how many times have I posted that? Anyway, flash ICS u and x with fastboot.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Can someone please explain to me what all this ICS and JB U and X thing is? I am lost

I have and it doesn't work... none of the 20a will install for me...
Sent from my LG-P769 using XDA Premium HD app

Related

Unroot without recovery

Hello,
So whats going on is my QI wireless on my phone stopped charging. so i called verizon to get a replacement which they are overnighting tonight to me. so my question is, is there a way (step by step) to just put the Orignal Recovery Flash rom back on the phone and just lock the bootloader without resetting the phone? if so and do that. well the tamper disappear on the phone as well? ?? because they want the phone how it is. they dont want me to do a phone reset so they can see what cause the problem...
So 2nd question if i don't fix the rooting and ship the phone as is to verizon. Do you think i well get charged for rooting my phone???
Thanks!
Flash a stock rom and kernel, restore all your apps and stuff, delete any root apps, remove supreuser/SuperSU, flash the stock recovery, and relock if you feel like it. If you all that you should be good.
Or just ruu and relock your phone. As long as the problem still persists they won't care that you wiped it.
Sent from my HTC6435LVW using xda app-developers app
I hope the new one doesn't come updated because if so you won't be able to root. I would restore the old one and see if the wireless charging works again if so you might want to keep it if the new one is updated.
Sent from my HTC6435LVW using xda premium
where can I find the stock rom on this site. I looked everywhere and cant seem to find it. as well with the boot loader to lock it..
I wish I can keep this phone but it is a hardware issues :/
anyone???
where can I find a stock rom on this site???? without nuking my phone???
xd4v3x said:
anyone???
where can I find a stock rom on this site???? without nuking my phone???
Click to expand...
Click to collapse
That was hard.
http://forum.xda-developers.com/showthread.php?t=2080200
Sent from my HTC6435LVW using xda app-developers app
well Verizon or htc bill me If I sent them a rooted phone? because what's going on is the phone is having hardware issues. the QI wireless in the phone to charge is dead....
xd4v3x said:
well Verizon or htc bill me If I sent them a rooted phone? because what's going on is the phone is having hardware issues. the QI wireless in the phone to charge is dead....
Click to expand...
Click to collapse
Just unroot it...
Sent from my HTC6435LVW using xda app-developers app
Bigandrewgold said:
Just unroot it...
Sent from my HTC6435LVW using xda app-developers app
Click to expand...
Click to collapse
having a hard time doing so.
xd4v3x said:
having a hard time doing so.
Click to expand...
Click to collapse
What is not working.
Sent from my HTC6435LVW using xda app-developers app
just have no Idea what to do after downloading that app from that link....
xd4v3x said:
just have no Idea what to do after downloading that app from that link....
Click to expand...
Click to collapse
What app?
Sent from my HTC6435LVW using xda app-developers app
The link that u posted I downloaded off that site.
http://forum.xda-developers.com/show....php?t=2080200
clicked on the dl and its on my system but I have no idea what to do with it.
xd4v3x said:
The link that u posted I downloaded off that site.
http://forum.xda-developers.com/show....php?t=2080200
clicked on the dl and its on my system but I have no idea what to do with it.
Click to expand...
Click to collapse
The download on that post is a zip file, which you would flash in recovery to have a stock Rom. Then you would restore your apps, remove any root apps, remove superuser, put a stock recovery on there and relock.
Sent from my HTC6435LVW using xda app-developers app
Bigandrewgold said:
The download on that post is a zip file, which you would flash in recovery to have a stock Rom. Then you would restore your apps, remove any root apps, remove superuser, put a stock recovery on there and relock.
Sent from my HTC6435LVW using xda app-developers app
Click to expand...
Click to collapse
ok easy said and done but I have no idea what are the commands on going after I unzip that folder... is there a step by step on how to go by doing this..
xd4v3x said:
ok easy said and done but I have no idea what are the commands on going after I unzip that folder... is there a step by step on how to go by doing this..
Click to expand...
Click to collapse
You don't unzip it... You flash it in recovery.
Sent from my HTC6435LVW using xda app-developers app

(Unlock Bootloader Official)P769 V20F

Guys Guys I found out that you can unlock bootloader on v20f OMG OMG OMG OMG OMG OMG OMG!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I WILL BE POSTING BACK,,,, :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:
After Reading Some More It says you will lose all your data.. mmmmm gunna check something out
Part 1 Is only for people who has not unlocked bootloader Part 2 is for people who have unlocked bootloader and Part 3 Is For Everyone
Oh and Sorry for the cruddy tutorial will update it tomorrow its 3:24 am in Cali and i want to go to Sleep
Part 1
(Update) Well Its Official we have an unlocked bootloader on the P769 i attached a picture sorry its kinda blury i had to take it with my sisters ipod...
Ok well what you have to do dont worry its really easy
1) Download V20F kdz
2) Flash That kdz (dont worry about root well get that later....)
3) After it Boots Make sure you have signal to network (doesnt matter if it has service or not i havent paid mine yet and it unlocked)
4) Connect Phone To Computer and make sure you have USB Debugging on and then run the Following Command
"adb reboot oem-unlock"
after you run that command your phone should reboot i do not know why but there is no prompt like the p760 (if you want to confirm you have it unlocked do the following 1)turn off phone then hold volume up and connect usb from computer and you should get S/W update and at the top left Bootloader Status: Unlocked)
and there you have official unlocked
Part 2
ok now for those of you who did it the hard way and unlocked before i recommend you take this unlock but up to you first what you wan to do is
Make sure you have this installed "http://forum.xda-developers.com/showthread.php?t=2119090" and setup
then download this
Lelus Fastboot Script : "http://forum.xda-developers.com/showthread.php?t=2292828'
and then choose the one that says P769 ICS U and X Boot choose that then it will tell you do the battery thing then it will flash and now you have original X and U Boot Now you can flash the kdz and do the unlock make sure you do this first!!!
Part 3
Now to flash a recovery and flash root
Make sure you have it on your sd card there is different ones link are scattered so ill get them in a while
Install this http://forum.xda-developers.com/showthread.php?t=2292828 then start fastboot and flash a recovery image to your phone
then make sure you have the superuser zip on your sdcard then boot to recovery and flash the zip after you flash it now reboot and enjoy you have unlocked bootloader with root and cwm now just flash another rom and there Cheers
Superuser Zip: https://docs.google.com/file/d/0B059sYrh0T19UkxhLWtJaDFqZW8/edit?usp=sharing
carloswii5 said:
Guys Guys I found out that you can unlock bootloader on v20f OMG OMG OMG OMG OMG OMG OMG!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I WILL BE POSTING BACK,,,, :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:
Click to expand...
Click to collapse
Is it an easier method than other one? Hope so!
Sent from my LG-P769 using Tapatalk 4 Beta
geeshiet said:
Is it an easier method than other one? Hope so!
Sent from my LG-P769 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Should be but ill update shortly
What a useful post... better try first, then report. Whats the sense behind omg omg omg omg?
Sent from my LG-P760 using xda app-developers app
Great find man, lets us know how it goes.
Sent from my LG-P769 using xda app-developers app
N00BY0815 said:
What a useful post... better try first, then report. Whats the sense behind omg omg omg omg?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
My apologize PRINCESS ill do that first next time....
carloswii5 said:
Guys Guys I found out that you can unlock bootloader on v20f OMG OMG OMG OMG OMG OMG OMG!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I WILL BE POSTING BACK,,,, :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:
(Update) After Reading Some More It says you will lose all your data.. mmmmm gunna check something out
Click to expand...
Click to collapse
So where are you getting your information that the bootloader can be opened on this version.
kuma82 said:
So where are you getting your information that the bootloader can be opened on this version.
Click to expand...
Click to collapse
You learn alot from navigating through KDZ's(bin files) and reading the information thats inside them :angel:
N00BY0815 said:
What a useful post... better try first, then report. Whats the sense behind omg omg omg omg?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
What a useful post, huh
What if you already updated officially....do you need to flash the .kdz?
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jtragna said:
What if you already updated officially....do you need to flash the .kdz?
Sent from my LG-P769 using XDA Premium HD app
Click to expand...
Click to collapse
My question exactly.
Sent from my LG-P769 using Tapatalk 4 Beta
Can't we just use terminal emulator and type
"reboot oem-unlock"?
EDIT: Nvm it says action not permitted
sent from my locked rooted P769 v20f
I'm on YouTube (BioDesigner48)
Than You Carlosii5!
Has anyone else successfully unlocked with this process? Also will we still be able to boot CM10?
Sent from my LG-P769 using xda app-developers app
I am a huge noob
Hey i have no idea what to do i am a huge noon at these things andi want to get my lg optimus l9 p769 rooted. What relly confused me is when you said i had to flash something and i thought you had to be rooted to do that. Please help.
I tried the ADB command and the device rebooted. When I went into software update mode it did not mention anything about the bootloader being unlocked. I'm going to try again in 30 minutes as I had just put in the SIM card prior to attempting to unlock. Not sure if it makes a difference but the SIM card does not have active service and I flashed the 20D KDZ before doing the OTA update to 20F.
EDIT: Waited 2 hours and tried to unlock again, no dice. I guess I'll wait for further instructions.
Nice find! I'll have to try this tonight.
Sent from my LG-P769 using xda app-developers app
I know this is a noob question, but where's the KDZ at? It isn't in cmahendra's repository and I really want to unlock my bootloader tonight. BTW, I'm not new. Well technically yes, but I've been lurking these forums since late January. So um, yeah. I need the KDZ and such. I'm already on P769F but I got it through OTA... I went into Terminal Emulator and I thought I had something, I went "su" and then "reboot oem-unlock" and it would unlock, but my phone didn't show the confirmation in S/W update mode. I'm using artas locked bootloader recovery if that means anything. Wait, actually I'm going to try something.. I might have just answered my plethora of questions. Sorry for the useless post xD
Thanks Carloswii5. When you get a chance, please give some more detail, and possibly links to the correct version of what we need to download\install. Great find, though!
BioDesigner48 said:
Can't we just use terminal emulator and type
"reboot oem-unlock"?
EDIT: Nvm it says action not permitted
sent from my locked rooted P769 v20f
I'm on YouTube (BioDesigner48)
Click to expand...
Click to collapse
I got the tmobile lg p769 on wind mobile v21b. I just did the reboot oem-unlock through terminal. Then powered off phone and plugged in sw upgrade. And says bootloader status unlocked. It was backwards because mines been unlocked for a while. But maybe u could use the v21b cwm backup and do the unlock. I stayed on the wind rom for move apps to sd is built in. I get the same 4g coverage from tmobile. Just changed the apns.config.xml with tmobiles v20f and set up apns manully. The same tweaks work on the wind version as the others. Oh theres a telepony.xml u need to replace as well. Just thought everyone should know how much of an asset wind 21b can be no matter what carrier u got.
Type su in terminal then press enter. Then type unlock command. It rebooted but I'm not near a PC to confirm (20f via cwm update).
Sent from my LG-P769 using xda app-developers app

i think i need help please...

ok,so i just got the P769 and unlocked the bootloader and rooted and all that. so i tried going back to stock through KDZ and lost root. so i tried to regain root using a guide on this forum saying to use fastboot and i did that and got to the inverse lg logo and now my screen is messed up. not like the "Wonky" type way when you first unlock the BL but on the bottom of the screen seems to be borked now.. any ideas? ive tried flashing the TS cwm fix again and the f20 u boot and nothing...
FIXED!
Why would you want to go back to stock? LOL.
I would use fastboot and use these commands....
fastboot erase system
fastboot erase userdata
fastboot erase cache
fastboot erase recovery
fastboot erase boot
Then flash u and x and try to offline flash the kdz.
Sent from my LG-P769 using XDA Premium 4 mobile app
---------- Post added at 09:18 AM ---------- Previous post was at 09:16 AM ----------
Or we can trade phones if you want stock that badly. Joking....lol.
Sent from my LG-P769 using XDA Premium 4 mobile app
copper lecpolic
Well thanks for the reply but I managed to fix it right after posting this.
I wanted stock again to see how the battery actually is but it only lasts me about 6-7 hours if that.
Why would you want to trade!?
Not unlocked!?!?!?
Not unlocked. I've tried everything. My dad is getting the Optimus F6 and I'll be trading phones with him.
Sent from my LG-P769 using XDA Premium 4 mobile app
LaDY Vengeance said:
Not unlocked. I've tried everything. My dad is getting the Optimus F6 and I'll be trading phones with him.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Just got the f6 on metro... no root method I trust is working.
Just a heads up
Sent from my LGMS500 using XDA Premium 4 mobile app

[Q] Back and Menu Buttons Blinking

Hey there, I'm new to the LG Optimus L9 (P769) community and I don't know if this is normal but I don't remember seeing this when I first turned on my phone. The back and menu buttons blink during boot. Is that normal? The only thing I've done is root and install a custom recovery. It blinks at the LG logo.
That's normal after you install the 2nd init recovery. If you push the vol down button while they're flashing, it takes you to CWM.
Sent from my LG-P769 using XDA Premium 4 mobile app
LaDY Vengeance said:
That's normal after you install the 2nd init recovery. If you push the vol down button while they're flashing, it takes you to CWM.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks
Sent from my LG-P769 using Tapatalk
You're welcome! Now don't try to flash CyanogenMod! It'll give the infamous security error if your bootloader is locked!
Sent from my LG-P769 using XDA Premium 4 mobile app
LaDY Vengeance said:
You're welcome! Now don't try to flash CyanogenMod! It'll give the infamous security error if your bootloader is locked!
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Lol I saw people posting around about it. I was thinking of installing that themed ROM for our device. LG sucks lol. Not only you can't unlock the boot loader you can't access it. I'm so use to being able to fastboot boot.img and recovery. I'm kind of confused about something though. When the phone receives an ota , how does it flash it by itself? I know with HTC devices, it reboots to stock recovery and install and I know you can install ruu in hboot.
Sent from my LG-P769 using Tapatalk
XAlexander_AlexanderX said:
Lol I saw people posting around about it. I was thinking of installing that themed ROM for our device. LG sucks lol. Not only you can't unlock the boot loader you can't access it. I'm so use to being able to fastboot boot.img and recovery. I'm kind of confused about something though. When the phone receives an ota , how does it flash it by itself? I know with HTC devices, it reboots to stock recovery and install and I know you can install ruu in hboot.
Sent from my LG-P769 using Tapatalk
Click to expand...
Click to collapse
That's over my head...lol! LG is now following this trend of removing fastboot....how is that following open source policy again?....anyway, if you check the L9 II thread, you'll see what I mean. These evil people also made the Nexus which can be unlocked in 5 minutes and has fastboot. They like getting on our nerves it seems....*sigh*
Sent from my LG-P769 using XDA Premium 4 mobile app

[Q] cant unlock bootloader

Hello guys,
My phone was bootloader unlocked. And my L9's motherboard was fired last week LG service told me; we changed motherboard. And they repaired it. And now I want to unlock my bootloader but it didn't unlock. I tried all methods and if I start the oem-unlock command, my phone is normally rebooted. So I can't unlock my bootloader. My phone's informations in the attachment. Please help me. Thanks...
Anyone has same problem? :crying:
I'm crying too.
Sent from my LG-P769 using XDA Premium 4 mobile app
LaDY Vengeance said:
I'm crying too.
Sent from my LG-P769 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Did you tried flash other KDZ file?
I'm done with flashing those stupid euro kdzs.....hahaha! I'm going to install kuma82's themed rom tonight and that will be it until someone figures out how to use the stock kernel to port a CM 10 for locked bootloaders. LG....you win...for now.
Sent from my LG-P769 using XDA Premium 4 mobile app
kuma82's guide
After trying the manual/KDZ method several times (then giving up) I tried kuma82's guide and it worked for me:
http://forum.xda-developers.com/showthread.php?t=2601480
My phone is dated May 2013, I know there's some discussion about whether LG completely locked L9s after a certain date. Anyway, I was surprised, but for my phone it worked.

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