yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] tribalartgod:
Maybe this has already been asked, and if so, I apologize...

But... For bootloader unlocking (P769) the wonky touchscreen is a pain in the ***... So I was wondering how hard it is to root the V20B rom... If it's rooted, we could then flash the V6.bin for the touchscreen firmware and things would be substantially easier.

Thoughts on this? Input?
[LG Optimus L9 P760, P765, P768, P769] Lelus:
I don't remember ,is restart needed after flashing the v6.bin? If it is then it won't work
[LG Optimus L9 P760, P765, P768, P769] Cameron581:
when i try and unlock the bootloader it just reboots and does nothing??
[LG Optimus L9 P760, P765, P768, P769] fredo5580:
I think

Ok some basic info on what i have done....i flashed ufix x loader and u boot thinking it would just fix the screen..what really happened was very wierd....of course the boot image was fix and colors were correct, and i STILL was able to get to fastboot using Omap4Boot, i flashed recovery and WHAM!..Security error, as if bootloader was relocked(but still had fastboot) flashed boot.img from cwm backup thru fastboot and i was able to boot, but could not install any recovery...i then KDZ flashed from P769 V20D to Europe open V20B. No matter what i tried after boot i could not boot to LG fastboot screen to unlock, but i could still access fastboot, couldnt flash cwm recovery without security error...how i solved this after numerous kdz ing it back and forth thru V20D and V20B, the onlyway i was able to get to LG fastboot screen was to KDZ back to V10G and THEN back to V20B. Even stranger was once i got to screen, it had no option TO unlock, but merely with fastboot options as if bootloader had been unlocked the whole time. Anywho, after that I was able to flash recovery thru fastboot, restored from rooted cwm V20d (thanks Tablechair) and flashed radio.zip(otherwise you will only have 2g in the states) and then of course fix touchscreen...it was a real pain in my behind. :eek::crying::cowboy:
[LG Optimus L9 P760, P765, P768, P769] t.d:
well I thought I was ready to try my luck at flashing this, but my files are downloaded over their original file sizes ie 602.5mb, anyway I wanted to ask if using a mouse/keyboard will workaround the touch issues?

edit just noticed the file inside the zip is also 602.5mb, could my mac have a virus or is it telling me the filesize incorrectly?
[LG Optimus L9 P760, P765, P768, P769] Tablechair:
If you flash back the u-boot and x-loader from P769 they don't support unlocked bootloader. Your bootloader is in theory unlocked but in order to take advantage of it you need to be using the x&u from p760. If you indeed unlocked bootloader you can just flash the x&u from p760 in fastboot and you shouldn't get security errors anymore. The reverse startup screen goes away after locking screen and unlocking.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
I don't know why everyone flashes the X img. I never touch the X, only the u, boot, and recovery images. The u-boot img decides if the device is unlocked or not.

I got into the habit of erasing images before flashing. Less chance of stuff getting left behind
[LG Optimus L9 P760, P765, P768, P769] xparagonx:
Why does op recommend to wait for jb instead of using this guide to unlock bootloader? I understand that it's a difficult process. Is it made easier by waiting for jb? I've read this entire thread and many others concerning bootloader but I'm still a bit confused. This phone is so difficult to unlock bootloader compared to others I've owned.

Sorry if that was a nooby question!
[LG Optimus L9 P760, P765, P768, P769] carloswii5:
Because he made this a couple months before the JB update for p769 and he has not been active on the forums lately so he hasn't updated it.
[LG Optimus L9 P760, P765, P768, P769] xparagonx:
Oh ok thanks for response! So now that tmobile p769 has jb now, is there a better way to unlock bootloader?
[LG Optimus L9 P760, P765, P768, P769] leolawliet:
Just read everything carefully before doing anything, set everything up beforehand and you won't have a problem.
[LG Optimus L9 P760, P765, P768, P769] carloswii5:
Unfortunately no we didn't get it with the update so were still stuck with this method
[LG Optimus L9 P760, P765, P768, P769] niggist:
I seriously need help. I cannot connect to internet because my screen is inverted can someone please please please help me.
[LG Optimus L9 P760, P765, P768, P769] hitechkarthik:
please help me to root LG L9 P769 10G ICS.

Hi,

In my past i used lot of custom OS for differenct device. So i am bit familiar about android.

From Yesterday onwards I trying the lelus method of rooting for my device (LG L9 P769 10G ICS) and it always struck with update at 10%. so for i tried more than 20 times with all combination of bin file. but no luck. Could some one please help me to root my device LG L9 P769 10G ICS.

This is the error i am getting from LG softwarem update tool after 10% update

16:54:52 : wParam : 2004, lParam = 6

16:54:57 : wParam : 2004, lParam = 7

16:54:57 : wParam : 2007, lParam = 0

16:54:57 : Step : TYPE_WPARAM_READ_FILES

16:54:57 : wParam : 2004, lParam = 8

16:54:57 : Step : TYPE_WPARAM_IFX_DN_POS

16:55:14 : wParam : 2004, lParam = 9

16:55:14 : wParam : 2004, lParam = 10

16:55:35 : wParam : 2010, lParam = 3000

16:55:35 : CleanModelDll() : Free Model.dll

16:55:35 : _DetachDLL Call

16:55:35 : _DetachDLL Call End

16:55:35 : Page_Error ºÎºÐÀÔ´Ï´Ù

16:55:35 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

16:56:26 : Call Retry Thread

Any suggestion to fix this or anyother best method to root my device (LG L9 P769 10G ICS) please

regards

karthik
[LG Optimus L9 P760, P765, P768, P769] animusFL:
Running everything as admin? Win7?
[LG Optimus L9 P760, P765, P768, P769] hitechkarthik:
yes i am following as in instruction....but always struck with 10%...no mater which version of file it is....(like 10g...20f etc)
[LG Optimus L9 P760, P765, P768, P769] Kid_Ding:
Instead of putting the phone in s/w upgrade mode manually, leave it on in lg software mode. Then proceed with offline flashing step.
[LG Optimus L9 P760, P765, P768, P769] artit:
May I copy my post, please try this

Recently, many people got this error. I also have a hard time recovery my phone when flash kdz program not recognize it. Since my phone cannot boot up as your and any .zip and CWM backup don't boot my phone either. I try to recovery phone from LG support tools. It took a while to download and flash but it's work.

Please try...

1. Download LG mobile support tools from LG web site. http://www.lg.com/us/support-mobile/lg-P769

2. Boot your phone to SW upload mode

3. Start LG mobile support tool.

4. Connect your phone with usb cable. LG mobile support should detect your phone model. If not please reinstall LG usb drivers.

5. In LG mobile support tools, select "Customer support" > "Recover phone"

4. New dialog popup ask for IMEI or S/N. Your IMEI should already fill in textbox just click first button.

5. Wait for LG flash program to load kdz from their server and flash your phone. It should work.

With this working for me, I think that there may be somethings difference between our KDZ flash software and latest LG flash software.
[LG Optimus L9 P760, P765, P768, P769] hitechkarthik:
hi ,

thanks for your response. I am trying it right now. But i am wondering how long does it take to upgrade. Because for the past 15min i am seeing the software update(analysis and download are done) struck at 4% without any improvement.so am i need to do anything here... Please guide me.

regards

karthik

---------- Post added at 04:17 AM ---------- Previous post was at 04:13 AM ----------

Hi,

thanks for your response. I tried it. But no luck it is the same error:(. Please let me know do we have any best method.....?

regards

karthik
[LG Optimus L9 P760, P765, P768, P769] artit:
For me it took a while to download because my internet is slow. After download it's start flashing your phone. And you still stuck at 4% after download complete? I'm sorry but maybe this method don't work on your phone.

---------- Post added at 10:32 AM ---------- Previous post was at 10:21 AM ----------

I google for "android flash Lg phone got Page_Error" and found that disable LGE modem driver may solve this. Give it a try.
[LG Optimus L9 P760, P765, P768, P769] tbonezx11:
any update to process?

Ok,

I'm far from new to unlocking, rooting and flashing...but I AM new to it on LG ... HTC made it easy. Unfortunately, my Amaze had an issue & I was given this device (P769 with OTA v20f ('droid 4.1.2, build #JZ054k). Locked, unrooted and annoying as hell...

I've tried Carloswii5's way, the rom toolkit way (Mahdini) and to no avail other than factory resetting device...meh, I don't mind reinstalling etc.

So, with an OTA updated P769 (JB 4.1.2 v20f), what I'm seeing is the only way to unlock the bootloader or root the device so that it's mine & I can install whatever ROM I want (that's compatible, of course), I have to do some offline fix way? via cmahendra: http://xdaforums.com/show....php?t=2173465 ? this is really the only way?!?!?

Reading these instructions, it doesn't seem to work. I've done the adb reboot oem-unlock to no avail. It also basically factory reset my device.

What the hell is LG thinking? They are putting out the Nexus 5...I want to try to like this device, it's definitely not the HTC Amaze (16gb RAM, 1.5ghz processor, 8mb camera...), but it's the only "comparable" replacement tmobile will give me for replacement for free under warranty...so, it's what I have to live with for the time being...and it doesn't seem like a bad device...just needing some bloatware removed, apps2SD (since only 2gb of internal RAM) and a few other tweaks...

Any help would be appreciated in linking me to updated/current threads for methods that actually work for jy scenario. A lot of work has been done with the other variants and that's great, and appreciated, but doesn't help me. Please don't take my annoyance to be directed toward developers out there...it's at LG for making it so hard.

Goal is to unlock, root, and install some ROM that's MUCH closer to pure Android than LG's UI.

Thanks for any direction toward threads of currently known working processes for P769 on stock, OTA, v20f with locked bootloader and unrooted device on Tmobile -- and if anyone cares or it matters, I have Win8 with the latest Android SDK already working and the LG drivers running without issue as well.
[LG Optimus L9 P760, P765, P768, P769] carloswii5:
You said you tried my method which one exactly?
[LG Optimus L9 P760, P765, P768, P769] joshtheitguy:
I've successfully installed the V20B and followed the guide but 38 minutes later nothing.

I painstakingly connected to my wireless and left it connected for 1 hr 6 minutes and still nothing. My girlfriend needs her phone so at this point I'm just going to try to flash back to a stock rom but did I miss something here?
[LG Optimus L9 P760, P765, P768, P769] omgbossis21:
If you went from jellybean to the open firmware it won't work. You should do a hard reset then flash 10g. Boot it up one ,then hard reset again. Then flash open firmware wait 30 minutes and try again. You must have a sim on the network (signal) for it to work. You can flash another radio if you can't get service. I believe this method was tried and true
[LG Optimus L9 P760, P765, P768, P769] tbonezx11:
The one outlined in this thread: http://xdaforums.com/showthread.php?p=43770474 that was linked from this thread: http://xdaforums.com/showthread.php?t=2342066

Again, I'm grateful for all the dev work going on and not frustrated with anyone other than LG for making such a stinking difficult device to unlock.

From everything I've read (way more than I should have to, haha), the only way to unlock the bootloader is to root first, sideload a p760 ics ROM, unlock bootloader, THEN flash a recovery (CWM or TWRP) and THEN FINALLY, if I've done all the exactly right, while balancing on my left foot with my right pinky facing magnetic south, THEN I can install a custom ROM, go back to JB and a ROM built for the P769...

If someone can verify or point me to a thread that shows how I can unlook bootloader on a P769 with JB (v20f), I'd be eternally grateful. Once bootloader is unlocked, it seems "fairly" straightforward to install custom recovery and root the device.

Again, thanks for any help.
[LG Optimus L9 P760, P765, P768, P769] tawhid111:
update first you have to do hard reset after going back to 10g

vol- + home + power
[LG Optimus L9 P760, P765, P768, P769] joshtheitguy:
Yeah, that is probably where I went wrong I did get service with the radio but I didn't wipe it. It was late and apparently my reading comprehension skills go out the window that late. I will try wiping it before, flash, wipe again, and then see what happens. Thanks for the reply.
[LG Optimus L9 P760, P765, P768, P769] carloswii5:
only if your running v20d
[LG Optimus L9 P760, P765, P768, P769] omgbossis21:
Anyone who flashes 10g please take a moment to look at the partitions and tell me if their is a NV partition or if its named nvdata, thanks in advance :)
[LG Optimus L9 P760, P765, P768, P769] MulletovRocktail:
Hrm. I'm not sure where I could be going wrong here, because at this point I've tried every method up to and including this one and I'm not getting anywhere. I've flashed just about every firmware mentioned in bootloader threads, done factory resets and installed and reinstalled drivers. The most action I've gotten was an unresponsive glitchy fastboot screen via omap4boot. My phone is the Metro PCS model which I believe is identical to the T Mobile one, but I'm starting to suspect that there is something at the hardware level that is preventing my phone from cooperating.

In a last-ditch attempt I guess I'll try waiting overnight with 20b before trying to unlock, but I'm just about resigned to a locked bootloader for now.
[LG Optimus L9 P760, P765, P768, P769] omgbossis21:
I haven't had luck unlocking it either, that's why I'm trying to find out what's goin on. Perhaps a cwm backup of the open firmware.....
[LG Optimus L9 P760, P765, P768, P769] tawhid111:
well if anyone need help let me know .. i have done this and understand it very well.. but realisctly speaking i dont see much of a point of unlocking the bootloader i dont see a proper rom out there running CM10.1 bluetooth gives fuzzy noise .we would need stable roms ..:silly:
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
newbie question

Just got my cellphone 1 week ago and spend 2 days reading these forums, can someone help me with a few things with bootloader and Custom rom? Note: I already did the root yesterday, so, I already can do the Offline procedures...

1) My "L9 P768f ICS with a KDZ from Brazil": Can I run the exactly same steps as in this post? (can I ignore the fact that is running on a "Tmobile from 10G?")

2) After I successfully do all the steps (Root + unlock bootloader), can I already flash may android with a custom ROM?

3) What is gapps (last post on the "CyanogenMod 10.1 UNOFFICIAL for LG Optimus L9 p769" part of the topic)

4) There's is a newbie tutorial on how to flash to a custom rom?

Thank's

No need to answer all of this, but it will Help a LOT! When you read this i will be also studyng the L9 in these forum...

Also, I know that the CM Unofficial is buggy, but I prefer a bug rom than these virtual drives and can't use the app2sd
[LG Optimus L9 P760, P765, P768, P769] artit:
1. For P768 model, you should unlock bootloader by http://xdaforums.com/showthread.php?t=2313794

2. Yes. You must unlock bootloader to flash custom rom. To see if you boot loader unlock or not, just enter S/W upload mode. If your bootloader is unlock it'll print at top of screen.

3. gapps is Google app (ex. GMail, Google Play, ...)

4. Flash a custom rom is easy. Enter into CWM, Wipe, and install zip from sd or external sd. Done. You should do CWM backup to external SD first in case if something go wrong.

And don't try to flash P769 kdz on P768, it is some hardware different. You may brick you phone.
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
Yes, mine is P769, made a mistake, so everything is ok, aavery thanks :)
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
Trying..

All the day long trying download the V20B_00 KDZ file from this post, the LG server's always fail on me, is already more than 4 hours trying to download and nothing! Already used even download manager's! if someone could uploade somewhere else, the file has 575MB and the file is completed with 520 MB maximum :c

Also, sorry the double post..
[LG Optimus L9 P760, P765, P768, P769] nfilipac:
Did you alter C:\Windows\System32\drivers\etc\hosts and add these two lines?

127.0.0.1 csmg.lgmobile.com

127.0.0.1 csmgdl.lgmobile.com

If you did you won't be able to download from LG servers until you erase those two lines and save.
[LG Optimus L9 P760, P765, P768, P769] :
If you need a better link, I've uploaded it here: http://rapidshare.com/files/2423287225/V20B_00.kdz
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
Now on the ROM flash

Okay, done all the tutorial, now I installed the CWM but always get the "can't open xxx.zip installation aborted"

My LG really was p768f ICS, but this tutorial works anyways, everything runs fine, no mirror or touchscreen issues.

Trying to install this rom http://xdaforums.com/showthread.php?t=2365130

Look's like is a Jellybeam rom, is that the problem that zip won't open?

Also, there's is a video on this forum (also for p769 not p768), where the guy made all my step's, but instead install only CWM apk, his install by fastbook another CWM with a recovery image (I don't know what is a recovery image anyways), then restart in another CWM, this time a 6.0.3.1 version (mine is 6.0.1.2)

Another problem that he does that before installing tha original firmware, he install CM 10.1 on the mirrored KDZ.

...

Will be trying his method if anyone can help me, please reply

Edit: Can't enter in fastboot mode in P768 and can't install CW mode from recovery.img, also, I already has the CW, but installed from the http://xdaforums.com/showthread.php?t=2095825

The problem is: Install a ROM in my P768 (unlocked boot + root) from a zip without give me error
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
Does your phone say that you have an unlocked bootloader? Like, when you go into S/W upgrade mode (Remove battery, wait about three to five seconds, hold VOL UP and insert USB) does it say unlocked bootloader at the top? If it doesn't then it won't work lol. If it does then I don't know what's wrong, the most broad answer that probably would work would be to make a CWM backup, factory reset, wipe cache partition, dalvik, fix permissions, etc. And then re-root stock and unlock bootloader again lol. Regardless of whether or not it works, restore your backup when finished. That's my best guess mate. Sorry lol.(:
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
HELP :c

Before you said that, I format using recovery and I get stuck on LG logo, I made a backup but now I discover that it won't work at all, where do I find rewcovery images? D:
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
Oh yippee! I get to help somebody in distress! :D Okay. Sorry aha. This post might be long, not sure. I want to get you EVERYTHING BACK.(:

1.) Did you factory reset? If so, good. Your phone will definitely work after this lol.

2.) Did make a CWM backup? If so, perfect! You'll get all your stuff back. If not, sorry lol.(:

3.) Do you know how to flash a KDZ? If not, I would be absolutely thrilled to instruct you how. Basically, this is tricking an LG utility into flashing an official Android "ROM" if you will, onto our phones. Making them UNBRICKABLE.
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
Heeeeeeeeelp :ccc

1.When I do Factory rest my phone goes to CWM (VOL DOWN + HOME + POWER)

2.Yes I did, but the file got corrupted (it was on phone memory :c)

3. Now it's late.
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
1.) That's not CWM lol, that's the stock resetting your phone.

2.) That sucks. Lol.

3.) I can give you instructions and you can do it in 5 minutes. The actual flashing takes about 10, but it doesn't require any of your work.
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
Can you give these instructions?

Yeah it's CWM, it's written CWM, ther's the option from cw, I can restore, install zip,. everything else :c

It's bugged?
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
Have you followed this guide? If you need help with it ask me. The required files are at the bottom of the first post.

http://xdaforums.com/showthread.php?t=2085344
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
I'm *%$'ed :SS

No I can't Install KDZ, because the last method of Bootloader unlock made that KDZ offline always says that USB is not connected

1.Hard Reset Won't access anymore

2.SW update don't see the USB because last KDZ offline method

3.SW says Bootloader is unlocked

Can't use any of the above, only CWM

---------- Post added at 03:50 PM ---------- Previous post was at 03:43 PM ----------

I can't Install KDZ, because the last method of Bootloader unlock made that KDZ offline always says that USB is not connected

1.Hard Reset Won't access anymore leave me to CWM

2.SW update don't see the USB because last KDZ offline method

3.SW says Bootloader is unlocked

Can't use any of the above, only CWM
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
Here bud. LG cares about you. They have a program to fix it. Remove the LG hosts files things from the NotePad Hosts file. Then close the HTTP server if you have one running. Next, I want you to run the LG Mobile Support Tool. Click Customer Support, then click "Recovery." Remove the battery from your phone and type in your IMEI code, located on the white tab behind your battery. Then insert your battery and the case, and click okay. If you have an internet connection, it should automatically begin to download an OFFICIAL update to your phone. You will need to re-root, etc. However your phone will be fixed. I had a similar issue where it wouldn't get past the "T-Mobile" logo. That should work.
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
Very thanks

It's worked also, learn too much with all of it, also, still wanting a ROM to get ride that stupid partition thing, tested others zips on CWM and worked! My phone don't install jellybeam Rom I think that's because is a ICS and the rom must be designed for JB (It's make some sene? Please, answer me if you know)

Sooooooooo happy right know, but, there's more to do.

Will keep a eye on the forum, learn too much and I can help when possible, very thanks bro! 8)

Also, if someone out there read this and is using a stable and working rom on a P768 ICS, please send me PM :)
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
No problem mate(: If you want some mods to put on your phone after you root and get recovery again, check out my thread HERE.

Glad I helped you out!!(:
[LG Optimus L9 P760, P765, P768, P769] maikson wazowski:
My only problem is the partition on theses models want to use app2sd, that's because I'm on one week trying to flash another ROM, unfortinately appear's there's no rom for ICS P768 yet.

Will wait, if you know another metod of get ride of this, let me know *-*
[LG Optimus L9 P760, P765, P768, P769] Ilxaot:
Sadly there are no ROMs for P768 ICS, bummer, I know. I hope something comes out soon!(: I heard a rumor of someone trying to port CM 10.1, but that was months ago.