yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Agreed. I have a WIND Mobile P769, stock is ICS V11A.

What I did:

Flashed stock V11A KDZ

Flashed European Open V20H KDZ

Attempt to navigate flipped, wonky screen successfully

Enable USB Debugging and LG Software mode

adb devices shows device

adb reboot oem-unlock

This is where I ran into trouble. Rather than boot into the fastboot menu with the white text asking me if I want to unlock the device, the screen just blanks. Pretty sure the device just turns off, and I have to yank the battery to get it to come back on.

Ugh. In all honesty I think I'd have preferred one of the cheap WP8 devices WIND had instead of this phone. At least then I'd know not to mess with it.

EDIT: I should also note that I am unable to acquire a network signal while on the European ROM. Perhaps that's why it's failing? I am connected to my (now unsecured because typing on that screen is an enormous PITA) Wi-Fi network.
[LG Optimus L9 P760, P765, P768, P769] lwg45714:
You should use v20b not v20h. You need to reread the instructions and watch the video again, It tells you about the signal issue and gives the solution.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Alright, now I'm stuck at installing CWM via the recovery APK. It seems I'm missing Superuser. Should I get it off of the Play Store or is there a ZIP I'm supposed to get it from?

I thought it'd just be there after replacing the BIN file during flashing but I guess not?

EDIT: okay, I'm guessing something went wrong when I copied the BIN file, guess I wasn't fast enough, because even after painstakingly installing SuperUser from the Play Store (a gigantic pain I gotta tell you) I still do not have root access.

Guess I'll try again later, but it seems tonight I'm still without my phone.
[LG Optimus L9 P760, P765, P768, P769] ReikiDraven:
After flashing your ROM, is it necessary to flash the radio again? My data connection speed is pretty weak. I'm only getting 2G. The fact that I can connect at all tells me that the APN settings are correct, but I wonder if I missed something. Thanks.

I just realized that the phone says it is MetroPCS, and I am currently with T-Mobile. I think that's the reason.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
So... you do recommend this, or don't? XD

I can't tell LOL. You put it out there (and I appreciate the help) but at the same time you say it's not finished... I suppose it's worth a shot, as all I got right now is a Canadian device that thinks it's European and tries its best to prove it (have to say though, I think the inverted colour scheme is growing on me :P ).
[LG Optimus L9 P760, P765, P768, P769] kuma82:
My carrier is T-Mobile, you must be on the wrong baseband. I think the one Carlos is sharing is old.

I have no issues with signal. I'm make an up to date flashable radio sometime tonight.

So people can be on the correct/updated baseband.

Here is the latest baseband/radio for 10D Rom

http://xdaforums.com/attachment.php?attachmentid=2449898&d=1386835163

Install with cwm

---------- Post added at 10:31 PM ---------- Previous post was at 10:27 PM ----------

It's makes it easier to root, install/fix busybox & install cwm. That's it for now. I should have it done by Friday hopefully.

So yes I recommend it to help root and get cwm running.

Lol I like the inverted stuff as well. I made some of my images on my themed 10D inverted.
[LG Optimus L9 P760, P765, P768, P769] animusFL:
I think you have it right up to euro v20b. What worked for me was NOT flashing the radio, adding the root bin, it took three tries to get the inverted lg logo, confirm root(inverted, wonky touch the whole time), no WiFi, set the phone in the window for forty minutes(with some signal), issued the unlock command from term without moving phone, booyah. Unlocked. Don't be afraid to experiment, you may find a combo that works. Good luck!
[LG Optimus L9 P760, P765, P768, P769] lwg45714:
Is this the baseband for if the phone was originally Tmobile or metroPCS? Thanks, figured illd give it a go, recently my signals been so so and i noticed my phone doesn't say its a p769 anymore, its saying metroPCSs model number. If this is the baseband to try, will I retain my data after flashing? Or should I make a backup, wipe dalvik, cache, data. Flash the baseband, restore my backup? Also I had no success using carlos radio file either, it gave me NO signal. Had perfect signal after adding the radio like you showed me kuma.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Lol I forgot which way I showed you, you mean swapping the single fls file during the offline flash?

You don't have to wipe anything with the MetroPCS V10D radio zip.

Flashing basebands only messes with the signal.

I got the 4 fls files from the 10D OTA update zip.

I downgraded to 10B and waited for the OTA to popup ;)
[LG Optimus L9 P760, P765, P768, P769] lwg45714:
Yep, swapping the file during the flash. So the one linked is what I need to flash?

See even xda premium thinks my phones a LGMS769? When its def. A LGP769! Hmmmm
[LG Optimus L9 P760, P765, P768, P769] kuma82:
If you did the swap you already have the correct baseband ;)

So you don't need it. :thumbup:

:D lgms769 is in the build.prop, the app (or Google) is getting it's information from their.
[LG Optimus L9 P760, P765, P768, P769] ReikiDraven:
The zip you posted fixed it flawlessly, [MENTION=4447066]kuma82[/MENTION]. Not showing 2G anymore, and am actually connecting faster than 6kbps now.

Once again, thanks for everything.
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
Combo? So that means that my phone is like the Cryptex in DaVinci Code? Ugh....
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Trying to follow the video. Followed along to the part where you flash V20B_00.kdz. Been at it all morning and can't get this to work. Added the lines to my hosts file, restarted, check hosts file, looks good. Start C:\shttps\http.exe. Check 127.0.0.1:9002, see the image of the girl. Wonderful. Set "UpTestEX_mod2_marwin.exe" to xp service pack 3 compatibility and run as admin. Select 3GQCT, diag, and select V20B_00.kdz. Click "Normal web upgrade test" and then "Upgrade Start". It says it's checking, but then instead of the popup asking to select a language, I get a window that says "LG Mobile Support Tool" it says I have V10D, it then says I have a software update available, and then it crashes. I've done it a few dozen times with the same result.

LGMS769 MetroPCS and apparently V10d, according to that software.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Wow, that worked perfectly! I am now in the inverted CWM!

Thank you so much for this program! :D

EDIT: and now, after waiting 30 minutes... nothing. Did NOT get the Fastboot prompt, just rebooted normally.

Asdfghjkl

I'm going to keep trying, hopefully it works one of the times...
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Making a bit of progress I think. Rooted using Cydia method, installed SuperSU, busybox, and the bootstrap recovery. Made a backup to external, and then restored a cwm backup of the v20b European rom by martan777. Booted it, navigated the borked screen/touch to get debugging, unknown sources, etc. Then used the tool Kuma posted to get root/busybox/cwm again. Flashed the radio.zip and restarted. Now waiting the 30 minutes to try the oem-unlock command. Let's hope.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
That's where it went wrong for me; now I just get a black screen when I issue the command.

Here's hoping it works for you.
[LG Optimus L9 P760, P765, P768, P769] shinobisoft:
Guys, I know the tutorial says wait 30 minutes but there are others, who've successfully unlocked their bootloaders, that recommend waiting 45 minutes to an hour. That's 45 - 60 minutes data and then 45 - 60 minutes wifi. The order of data or wifi doesn't matter from what I've seen.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
I made a guide trying to use nothing but cwm but it didn't work for everyone that tried.

You need to reset your router (unplug it for awhile) and then try the offline flash again.

I would also open an elevated cmd and type

ipconfig /flushdns

Plus reboot your computer

Doing all of the above should get the offline flash operating.

Hopefully doing it the cwm backup way works for you.

Question do you have the inverted lg logo at boot?
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Wait, it's 45 mins data PLUS 45 mins Wi-Fi? I thought you just turned on one or the other!
[LG Optimus L9 P760, P765, P768, P769] Zhono:
I waited an hour, and it just rebooted normally, no unlock prompt. No, the LG logo is not inverted. CWM and the rom are inverted. I'm restoring my stock backup now, and then I'll try the offline flash again with your suggestions. I'm hoping to get myself on CM10.2 and get my stuff all setup before I go back to work tomorrow.
[LG Optimus L9 P760, P765, P768, P769] Versatil2010:
I had waited exactly 35mins, just data. Never touched or used the phone including apps till i was unlocked and done.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
So, you think I should just use data?

I tried that, but I guess I can try it again...
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Using Kuma82's suggestions(several times) didn't help at all in getting the offline flash to work. I also tried doing the whole process in an XP virtual machine, still the same result. Not sure why I thought that would help, but oh well. Not sure what else I can do here.

EDIT* Finally got the offline flash to do something. Yay. Accept now it says insufficient battery level despite having a full battery. Greeaat.

EDIT2* Fixed that problem, NOW it got to 15% and says the usb cable isn't connected. Can't seem to fix it THIS time. This blows.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
How I got that problem resolved: yank out the battery, put it back in, turn phone back on. Should still be in S/W update mode.

Close the LG programs, reopen them after checking Device Manager to make sure the phone is still there (a Modem entry and an LGE device listed under USB Composite).

Repeat all steps, except this time the software should be able to grab your phone info.

Remember, if you have JB on the phone, don't put it into S/W update mode yourself! Enable USB Debugging and LG Software mode and let the update tool put it into the proper mode! But if you have ICS, it won't do this, and you'll need to hold Vol+ while plugging the powered off device in.
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Yep. That's exactly what I just finished doing, and it flashed finally. When the rom loaded up, it had a working data connection already, so I didn't bother trying to get back to cwm to flash the radio.zip. Just going to wait an hour and try the command. If it doesn't work, I'll flash the radio and try again. This thing is killing me. My mother's HTC wasn't even this hard to unlock, and that thing was no joke.
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
Not to seem like a nay sayer....but have we had any RECENT success with this method?
[LG Optimus L9 P760, P765, P768, P769] kuma82:
You need the inverted lg logo at boot or it won't work for sure.
[LG Optimus L9 P760, P765, P768, P769] Zhono:
And sure enough, when I did the unlock command and the phone restarted, the logo was not inverted. Did the offline flash again, and flashed the radio, logo still not inverted.
[LG Optimus L9 P760, P765, P768, P769] djm26:
thanks ......but i figured it out ...sort of ... i pulled the battery and left the usb cable pluged in for about 10 min now im on 10g again .....
[LG Optimus L9 P760, P765, P768, P769] djm26:
ok im at the fastboot with the backwards menu but fastboot devices dont find any thing on the pc
[LG Optimus L9 P760, P765, P768, P769] Meda808:
Same thing happened to me. Windows drivers would connect and immediately disconnect making fastboot useless. I ended up flashing 10g with Lelus root method and using a messed up screen installed L9 Recovery Installer and Robert Nediyakalaparambil busybox. That gave me CWM so i could flash the touch screen fix. after that i flashed Cyanogenmod. maybe i made it hard for myself, i dunno.. but i do know i got it all sorted out thanks to all the guides and posts from others. good luck.
[LG Optimus L9 P760, P765, P768, P769] animusFL:
I had the same issue i just used linux for the fastboot flash
[LG Optimus L9 P760, P765, P768, P769] omgbossis21:
Now you know how to get past the sucurity error so if it happens again its easy to fix :D
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Yea, looking back on it its not that hard. It was trying to come from tmo v20d that was the deal breaker.
[LG Optimus L9 P760, P765, P768, P769] renegade37918:
is the youtube link still going to get posted
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
Will this work even on v20f? Might unlock tmrw.. It's quite simple really. Read the guide twice and read all the comments...
[LG Optimus L9 P760, P765, P768, P769] fizzymilk:
When I flash form 10G to 20B I get the mirrored screen but I don't have any signal at all. When I try to connect to my WiFi it says authentication problem even though I know put in the right password. Did I do something wrong or can someone help me? Thank you in advance
[LG Optimus L9 P760, P765, P768, P769] carloswii5:
Flash the radio zip through bootstrap recovery
[LG Optimus L9 P760, P765, P768, P769] niggist:
I seriously need help. I unlocked the bootloader then my phone shut off now i cant detect it after i type in the cmd adb devices, no device shows up, it is just invisible. Is there anyway to get rid of the inverse screen and start over? Or should I just go straight to the fastboot steps?
[LG Optimus L9 P760, P765, P768, P769] animusFL:
You'll have to struggle thru the inverted screen, and make sure USB debugging is turned on, also turn on show touches, it will help immensely when you know where your touch ends up. Then adb should work.
[LG Optimus L9 P760, P765, P768, P769] niggist:
Ive got my device to show up and ive done the fastboot thing and flashed recovery but i dont understand what to do now. Do i flash v10g? or the v20d? and my touch screen is still messed up even after flashing the "fix"
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Flash any ROM, 10g 20d or cm10.1

Edit: I'd cwm flash CyanogenMod 10.1, that's what you unlocked the bootloader for, custom roms
[LG Optimus L9 P760, P765, P768, P769] tombassi:
hi ,

I was in the same situation last night , now you have to restore v20d I assume you already downloaded and put it in your sd card , if not do it then restore with cwm after that reboot , then go back to cwm and flash the touch fix .
[LG Optimus L9 P760, P765, P768, P769] niggist:
Im new to this stuff and I know CyanogenMod 10.1 is better than stock rom but can you tell me some of the benefits?

and

tombassi tyvm but i read that too late, now I have to reflash the kdz to get to that flashboot thing and flash a recovery.....sht
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Wow. CM is leaner meaner faster, no bloat. More customizable, plus its in heavy development for our device, so you can help the community and report bugs. If that's not for you, turn back now
[LG Optimus L9 P760, P765, P768, P769] fizzymilk:
My device is not showing up when I type "fastboot devices" even though it shows fastboot on the phone. When I type a different command it command prompt say "waiting for device". Can someone help?
[LG Optimus L9 P760, P765, P768, P769] niggist:
How would i restore v20d or CM and fix the touch screen?
[LG Optimus L9 P760, P765, P768, P769] fizzymilk:
I have been trying to unlock this darn phone for hours. I encountered a couple of problems but thanks to those who posted on the board I have finally gotten to fastboot. Now this is where the problem arises. When I type "fastboot devices"into CMD nothing shows up and when I try to enter a different command is says "waiting for device." When I first encountered this problem I simply just skipped the fastboot because my bootloader was unlocked I just couldn't flash the recovery. So then what I did was use artas's bootstrap recovery, flash the touchscreen fix, use Lelus's root method to flash back to 10G. Everything seemed to be working fine but then I tried to flash CM using Artas's recovery. I for some reason can not flash it. I tried both CMs at http://xdaforums.com/showthread.php?t=2355816 and http://xdaforums.com/showthread.php?t=2216542. Neither of these work so I went through the whole process again and I'm back to fastboot where my device will still not show up. Can anyone please help me? Thank you
[LG Optimus L9 P760, P765, P768, P769] kuma82:
You can root your phone with cydia impactor and flash the inverted u-boot (lg logo) while your phone is still turned on. The second device I unlocked booted with the normal lg logo and I used the Linux "dd" command to flash it (inverted lg logo). While you are waiting to unlock, do some reading in this thread.
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Searched the thread, couldn't figure that out. Ended up flashing again. Got the inverted LG splash finally. Had radio signal. Waited 1 hour, turned on wifi, fell asleep for additional 2 hours. Woke-up to the "Thank you for choosing LG" popup. Selected cancel. Did the "adb reboot oem-unlock" command. Phone restarts, black screen, nothing. Waited a minute or 2, still nothing. Had to hold power button to shut off and the turn on again. That's about all for me, I'm done. I'll wait and hope someone releases a working unlock method
[LG Optimus L9 P760, P765, P768, P769] kuma82:
So pressing the volume up button did nothing at that black screen?

Hopefully you didn't press the down button.
[LG Optimus L9 P760, P765, P768, P769] Zhono:
I pressed volume up, nothing happened. I gave it a minute and tried again, nothing. One more time, waited, nothing. Power button for 10 seconds and rebooted. Restored my backups again, flashed my radio, the touch fix and 20f u-boot.zip(despite having v10d, I hope that's fine.)

Is it possible that the bootloader was unlocked even though there was nothing on the screen? If it's possible, how would I know if it was unlocked?
[LG Optimus L9 P760, P765, P768, P769] aod990:
Like shinobisoft wrote here
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Ah. Thanks for that. Yep, it's still locked. 6am and I have to work. Guess I'll try again tomorrow. At least this is a difficult phone to brick, so try try again, I guess.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
You and I now are at the exact same stage.

We both cannot get that blasted fastboot menu to show up, asking to unlock!

I also get the black screen, though I just yank the battery. Nice to know you can hold the power button too.

I'm inclined to believe something went wrong during the flashing, though I am certainly not eager to keep going through this same process.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Put your phone in S/W Upgrade mode and if it worked, it will say UNLOCKED BOOTLOADER

That is only true on a Euro kdz.

It won't show the correct info on a *769 kdz.

Sorry I told you to search the thread. I stated what I did, but I didn't break it down step by step.

I'm almost done with my getting back to normal program.

I'm going to included an optional flashing the inverted u-boot and the reboot oem-unlock command for a one last shot.
[LG Optimus L9 P760, P765, P768, P769] shinobisoft:
Stupid question, maybe... Why can't we flash x, u, and boot from an already unlocked device? All certificates are contained in those images, right? Only signature mismatches cause LG Security Error. Wouldn't flashing matching unlocked x, u, and boot prevent that?
[LG Optimus L9 P760, P765, P768, P769] leolawliet:
Heeeeyyyy!! I finally made my first source build! :)

Also I decided to not sell the L9, I'll be sticking around waiting for you guys to join up, I have so much free time on my hands I'd like to try to help with the bootloader in any way that I can. I have an unlocked one, if you need a dump of it I can get you that, just tell me what I need to do to get that for you guys.

There's so much focus on the P769 bootloader I kinda wonder if anyone has looked into the P760 one. It kinda makes sense.
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
What do you mean, looked into the P760 one? We're using KDZs and recoveries meant for the P760 to try and unlock it! And how would their bootloader (which is far easier to unlock than ours) affect ours at all?

Having said all that, if you have any ideas, at this point I'd be willing to try anything that isn't any riskier than all that we've already done.

EDIT: Crap. Flashed stock, screen is still flipped. I think I need to flash ICS x and u but I can't remember how to do that and at the moment I have to go to work. I'll look it up later.
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
Missed ya (;
[LG Optimus L9 P760, P765, P768, P769] Alucai Vivorvel:
Huzzah! Phone is fully back to stock now, working 100% as far as I can tell. I did have to flash x and u to get the screen image back to normal, then (veeeery carefully) figure out how to get into Developer Settings with the messed up touchscreen, and finally root and install CWM with [MENTION=4447066]kuma82[/MENTION]'s nifty tool. I'm waiting to see if someone finally figures this thing out before going back in and making my device unusable (like it was for the past four days, at least).
[LG Optimus L9 P760, P765, P768, P769] leolawliet:
If I find anything useful to us while searching, I'll definitely post it here as soon as I spot it out. I'm kinda fed up with LG at this point, what difference does it make if a bootloader is locked or unlocked to them? They assume we're all gonna do the same thing, pirate apps.. they're making a big deal out of nothing, even unrooted users can do it. I think it's a poor excuse to lock a person out of their bootloader in the first place.

I wan't gone for long dude :p

I'm gonna stick around :)

---------- Post added at 12:14 AM ---------- Previous post was at 12:11 AM ----------

I would have to say the worst part of the whole process is dealing with the wonky touch screen, once you get used to it then it's really no problem. There have been times when I was using my phone as a daily with the reversed screen to bug people out lol.. I was able to navigate it without a problem :good:
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Interesting sidenote; something I flashed on my phone, presumably something that was originally provided by Kuma82, caused my apps(namely Speedtest) to think I was in Houston. lol I had to open a GPS app and let it detect my correct location before Speedtest would select local servers rather than Houston ones. Is that just a coincidence, or does it have to do with Kuma using his phone to make/extract files for us?
[LG Optimus L9 P760, P765, P768, P769] kuma82:
List what you have flashed that was mine and I'll look into it.

I think it has to do with Xposed Framework.
[LG Optimus L9 P760, P765, P768, P769] leolawliet:
The location of the server, it's not a coincidence. If I'm not mistaken it attempts to connect to the best server it can reach at the time. It's always different for me no matter what device I have used.
[LG Optimus L9 P760, P765, P768, P769] Zhono:
Not really sure which files. I believe the radio I'm using was posted by Kuma. Whether he was just linking it from elsewhere, I don't know. I just figured where he lists his location as Houston, and my phone suddenly thought that's where I was, that maybe something he provided from his device retained that info. It wasn't a problem at all really, as I just had to let any GPS app detect my current location. Again, not anything to worry about I think, it just confused me for a few minutes as to why my phone thought I was sudden;y a couple thousand miles away. lol

The files I've used that (I think all) come from Kuma, are MetroPCS-V10D-Radio.zip, 20f u-boot.zip, and the tool he provided for root/busybox/cwm(which works wonders, by the way.) Everything else I use was stuff linked to in the OP.