yashsingh1/xdaforums huggingface dataset:
[LG Optimus L9 P760, P765, P768, P769] nonopaito:
[Hi. I'm trying to install the driver omap4boot as a step to fix the mirror and display failure emerged one after flashing kdz to my P769bkgo. I can not get past the first step. The system can not find the driver in the folder C: \ omap4boot \ usb_drv_windows.

I'm trying it on a XP. I really appreciate your help to see if I finally can make the phone works again. Thank you.

QUOTE=sguerrini97;37213010]First of all, the thread about omap4boot: http://xdaforums.com/showthread.php?t=1971014

I didn't create this tool, I just found out a way to make it works with our phone, and maybe I'm not the first (tested under Windows 7 Ultimate 32-bit).

What do you need:

omap4boot, get it from original thread.

Extract omap4boot archive somewhere like C:\omap4boot (I will use this path in the tutorial).

Power off your phone and remove the battery.

Connect your phone (still without the battery) to the PC.

You will hear the sound of a new driver, then the sound of a driver when it disconnects continiusly.

Start -> Right click on "Computer" -> "Manage".

On the left column, click on "Device manager".

You will see a device that appear and disappear under "Other/Unknown Devices".

You must right click on the unknown device before it disappear, once clicked select "Driver Update".

Click on the second button (manually install driver) and insert the "usb_drv_windows" path (C:\omap4boot\usb_drv_windows) and install the driver.

Disconnect the phone from the PC and power it off.

Open a command prompt (Win+R, type cmd and press Enter).

Type the following command in the command prompt:

cd C:\omap4boot
start-fastboot.bat

Now input 3 (Prada 3.0 P940) and press enter.

Plug the phone without battery to the PC, when the tool says "Wait 5 seconds" put the battery in your phone.

(The first time that you do this, you have to install the drivers again. Repeat step 9)

At the other prompts answer always "N", this could be important.

Now you can use fastboot on L9 :) Next times you can start from step 12.

(the red rettangle isn't important here :p)

Sorry for my english, if someone wants to review the tutorial just send me a PM.[/QUOTE]
[LG Optimus L9 P760, P765, P768, P769] nonopaito:
Finally i have installed the omap4boot driver on Windows Vista.But after that the phone stays on black display with Fastboot 0.5 message. Is the fastboot complete. The next step is put it into S/W mode but it don't works. The phone does not start on. Thanks.

[/QUOTE]
[LG Optimus L9 P760, P765, P768, P769] artit:
[MENTION=5356280]nonopaito[/MENTION]

I check if your phone is in fastboot mode just type

> fastboot.exe devices

As you can see in your post picture, if there's line with

xxxxxxxxxxxxxxxxxxxxxxxx fastboot

appear after your enter above command, so your phone is in fastboot mode. Some L9 model (P768) will display black screen in this mode.
[LG Optimus L9 P760, P765, P768, P769] nonopaito:
Thanks for your help. When the phone is on the black screen with LG logo and the Fastboot 0.5 message, i type "fastboot.exe devices" and a message telling there is not a recognized comand appears. After the LG logo and Fastboot 0.5 appears the display stays arround 1 minute turned on and then it turns off. I can not to turn on it. I understood that after put the phone on Fastboot i will be able to start it on S/W mode to flash the fix for display issues. But now the phone doesn't works anymore. Can you help me ? Any idea? Thanks a lot.
[LG Optimus L9 P760, P765, P768, P769] artit:
Did you get this message when you type command

'fastnoot.exe' is not recognized as an internal or external command,

operable program or batch file.

If so, you may not in C:\omap4boot directory.

I use Lelus' fastboot script if this still don't work you can try it at http://xdaforums.com/showthread.php?t=2292828
[LG Optimus L9 P760, P765, P768, P769] piter_praga:
U-Boot

I would like a u-boot to P760. How to extract the file u-boot from. KDZ?
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Look at my signature ;)
[LG Optimus L9 P760, P765, P768, P769] MIXer9292:
Bootloader !!!

I can't understand why I can't unlock this f..king bootloader..
[LG Optimus L9 P760, P765, P768, P769] crues:
Finally!!!!! For those stucked like me this maybe help.

Ok so i done everything exactly as in tutorial in first post, do it also, then for install CWM... I checked status of bootloader, ulocked. Perfect. Run fastboot??? NO WAY, i never saw fastboot menu( when i hit enter in omap on question: fastboot device blah blah i hit Y and it show me some strange number= that is ok!! on second question u-bot i hit N also ok, after that there is just command line like C:/omap4boot/ -and that is just perfect, stay there)... now to flash recovery:

1)download the CWM, extract

2)rename it to recovery.img

3)copy recovery.img to C:/omap4boot/recovery.img (or where did you put omap)

4)in already openede cmd run fastboot flash recovery recovery.img

5)done!!! Recovery installed...

And before this to unlock bootloader i use romtoolkit, only step 3 because step 4 never recognized USB even when the driver in omap was OK... But unlock worked fine...
[LG Optimus L9 P760, P765, P768, P769] Rad777:
THIS 100% SAVED MY HARD BRICKED DEVICE THAT WOULD NOT CONNECT TO LG UPDATER FOR KDZ. Flashed CWM recovery and tossed on CM and was BACK in business.

Thank you!
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
So fastboot is a faster process to unbrick our phone than offline flashing? If anyone can answer. Thanks
[LG Optimus L9 P760, P765, P768, P769] kuma82:
They are pretty much used in conjunction.

If the system was not so big, we could flash the system with fastboot, but we can't.

For the ones with unlock bootloaders, the offline flash is really not needed anymore.
[LG Optimus L9 P760, P765, P768, P769] geeshiet:
Oh i see... Good to know! :thumbsup:
[LG Optimus L9 P760, P765, P768, P769] Aristodikos1:
Artas can you tell me a way to unlock my bootloader? I need to install cm 10.1 but with your l9 recovery (that it is the only way till now that i saw cwm on the beggining) the BL is still locked
[LG Optimus L9 P760, P765, P768, P769] gauravgs:
I faced the same problem too...

After oem unlock, phone booted in fastboot (after unlock bootloader) but my pc showed me 'error installing drivers'.

So I manually started fastboot, checked with 'fastboot devices' and then ran the command flash recovery..

all worked fine. and recovery flashed successfully.
[LG Optimus L9 P760, P765, P768, P769] Roker1:
Can i make the wipes with fastboot? and flash a new recovery?
[LG Optimus L9 P760, P765, P768, P769] Meda808:
I've spent hours on this looking at posts and trying to make it happen, but am needing some tips.

All I want to do is flash the u-boot and x-loader from ics to make it look like my bootloader hasn't been unlocked. I have successfully installed and operated the omap4boot instructions and have the driver installed. When i use this fastboot method, fastboot does not work and gives me some 'fastboot 2.0' screen. In CM10.1 if i reboot to bootloader, it puts me right into a fastboot that looks right and works well.. i can fastboot reboot and it works.

The problem i am having is when actually using fastboot flash x-loader p1.bin it gives me a 'partition does not exist' error. and when i try to flash the u-boot, i get 'unknown error'. I thought this was maybe due to the sd swap script, so i got rid of that to try and make this happen but i keep running into the same thing. I've googled and searched the forum here so sorry if its here and i missed the solution.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
So are you getting that error on both fastboots (unofficial and official) sorry you said unofficial does not work. Do you see that 2.0 on your device or in the cmd?

I want to tell you to try fastboot erase u-boot then fastboot flash u-boot p2.bin

But I'm afraid it might permanently brick your device, I've never seen those errors before.

Is something wrong with your device that you need to make it look locked.

CM 10.1 P769
[LG Optimus L9 P760, P765, P768, P769] Meda808:
I only see the Fastboot 2.0 when i use the omap4boot instructions. When i do that, i get nothing under 'fastboot devices' and 'fastboot reboot' does not work. Only when i reboot in CM10.1 with advanced reboot to bootloader do i get the normal looking and functioning fastboot screen that i see in the pictures people post. I do not believe there is anything wrong with the device i just wanted to flash those to make the bootloader appear locked, but if its going to be a lot of trouble then i can forget about it.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
The unofficial fastboot is probably not working because the drivers are not installed twice (sorry if I'm wrong). You do know that if you flash the ice u-boot you won't be able to use any custom recoveries or custom ROMs.

CM 10.1 P769

---------- Post added at 02:08 PM ---------- Previous post was at 01:56 PM ----------

Have you tried lelus fastboot batch script? So when you type

fastboot devices

Does it state waiting for device or something like that? Sorry for carrying this on, I'm just puzzled as to why it is not working for you.

If the reason why you want it to appear locked is because you have that inverted lg logo at boot, just flash the u-boot for 20f with cwm or twrp

http://xdaforums.com/showpost.php?p=44161955&postcount=310

CM 10.1 P769
[LG Optimus L9 P760, P765, P768, P769] Meda808:
I thought I installed the drivers twice, but maybe i'm wrong. Also i did not know that flashing ice u-boot would make me unable to flash recov and roms so i do appreciate that.

I tried Lelus fastboot script and it doesn't run for me for some reason. In my youth i wrote batch files for a BBS i ran (showing my age) so i'm no stranger to text editing and batch files. in the 2.0 fastboot i hear the windows device sound a couple of times, maybe the device is coming up and then going off, but then 'fastboot devices' just returns to C prompt whereas the cm fastboot shows a series of question marks when i type fastboot devices. I will try the 20f u-boot thanks for setting me straight there.
[LG Optimus L9 P760, P765, P768, P769] billa:
I wonder if this omap fastboot method could be used to trigger the bootloader unlock without having to wait 30 minutes after flashing the Euro_20b KDZ or better yet not even having to flash it?

If someone could try this and report back, after successfully getting a response on

fastboot devices

try

fastboot oem unlock

or

fastboot reboot oem-unlock

Anyone could try on the P769 Tmo?!
[LG Optimus L9 P760, P765, P768, P769] lambdaserver:
this also happens to me after i choose to unlock bootloader.

"error installing driver"

so are you using omap4boot then choose prada 3 for the driver or what? how did you manually started fastboot?

i'm still stuck at this stage and my phone had a hard reset after i turn off my phone after i choose to unlock.. and still can't install this fastboot driver..

thx
[LG Optimus L9 P760, P765, P768, P769] ShaqDroid:
my fastboot screen is inverted, any idea why?
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
This tool has saved me many times. For some reason, I look at the screen and think that somehow this can be used to unlock the bootloader. I'm just not tech savvy enough to accomplish that. I will try that this weekend.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
http://xdaforums.com/showpost.php?p=37626353&postcount=1

[MENTION=5412690]LaDY Vengeance[/MENTION] I've sent you a pm
[LG Optimus L9 P760, P765, P768, P769] cgigate:
this is normal on P769
[LG Optimus L9 P760, P765, P768, P769] kseunder84:
No matter what I do, I cannot get fastboot drivers to install for my phone. I've tried several times. It just sits there at waiting for omap44xx device. I've done the steps right to the T, My computer makes the sound as something connected then disconnected, then connected again and then once again disconnected. I've watched under device manager but I see nothing coming up, even when I do view all devices.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Check out Lelus thread

http://xdaforums.com/showthread.php?p=41768774

and this post

http://xdaforums.com/showpost.php?p=44653501&postcount=1

Now if you see the omap44xx installed in two locations, like my screenshot & you see the inverted lg fastboot. Take the USB cable out and put it back in.
[LG Optimus L9 P760, P765, P768, P769] kseunder84:
I've tried both of those links already, fastboot just will not boot for me. I've tried counting to 4 secs then putting battery, I've tried doing what someone else said and plugging in usb and putting battery in right away, I've tried just the usb cable. None of them will install fastboot.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Why do you need fastboot?

Have you installed the omap4430 driver once? What L9 model do you have? If I wait for 4 seconds it will not work for me. I have to put the battery in right away.
[LG Optimus L9 P760, P765, P768, P769] cgigate:
Yes
[LG Optimus L9 P760, P765, P768, P769] kseunder84:
I need fastboot because it's stuck at the LG Security Error and my computer does not detect it. I've tried installing omap4430 but it won't install, I've tried putting the battery in right away as well but still won't work for me. I have the Metro PCS LG Optimus L9 MS769. I wound up just taking it to Metro PCS and the guy put it in as a software problem and I've had the phone for a day so I'm still within 30 days he said, so I get a new one in 3-5 days for free.
[LG Optimus L9 P760, P765, P768, P769] sagitariox20a:
where is the files please help me

excuse me man. exactly where is located this files. I have the same problem with my p768g. sorry for my english. thanks :D
[LG Optimus L9 P760, P765, P768, P769] mihaianti:
lg p760

i bricked my phone after cm 10.2 update and all i can do is to enter in fastboot mode ," omap 4430 in fastboot mode" it show in device manager .when i try to write a recovery image or x-loader or u-boot it say FAILED(remote partition does not exist) ,is there any way to repartition? thanks.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Are you typing the command properly

fastboot flash recovery cwm.img
[LG Optimus L9 P760, P765, P768, P769] mihaianti:
Are you typing the command properly

fastboot flash recovery cwm.img

yes i am typing corectly and it say sending.. and after that FAILED
[LG Optimus L9 P760, P765, P768, P769] kuma82:
yes i am typing corectly and it say sending.. and after that FAILED[/QUOTE]

Dang, that sounds like a hardware failure. Maybe it's the USB port or your wire. How did this all happen again? You unlocked the bootloader and then it stopped working?

I see you updated cm

I think the cm you flashed didn't have the correct format and it messed up the partitions. Can you upload the update-script for the update.
[LG Optimus L9 P760, P765, P768, P769] mihaianti:
Dang, that sounds like a hardware failure. Maybe it's the USB port or your wire. How did this all happen again? You unlocked the bootloader and then it stopped working?

I see you updated cm

I think the cm you flashed didn't have the correct format and it messed up the partitions. Can you upload the update-script for the update.

I updated and used for two weeks cm 10.2 and in one day when i using the phone it restarted in cm boot screen forever , i shut down the phone and after that nothing, only omap 4430 fastboot device , other possible key combination dont work . Thanks for any sugestion.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
I updated and used for two weeks cm 10.2 and in one day when i using the phone it restarted in cm boot screen forever , i shut down the phone and after that nothing, only omap 4430 fastboot device , other possible key combination dont work . Thanks for any sugestion.[/QUOTE]

Oh okay, yeah you have a hardware failure. Nothing that can be done, beside buy a new phone.
[LG Optimus L9 P760, P765, P768, P769] mihaianti:
Oh okay, yeah you have a hardware failure. Nothing that can be done, beside buy a new phone.

My phone is still in waranty period so i will return it and say nothing about cm let's if if I am lucky , thanks !
[LG Optimus L9 P760, P765, P768, P769] simfate:
Hard brick

Hello,

I’ve read every post in this forum. My have a L9 P769 that I think I hardbricked when I tried to unlock the phone from tmobile to use another sim card from another carrier. So now the phone does not turn on no matter what I do. I think I can get into fastboot using the tutorial on the initial post. But after I get to the fastboot screen, what should I do next? I’ve read that you can flash a clean uboot or a recovery image or something else? I want to revive my phone and use a stock firmware. My phone was never rooted since I bought it. I’ve read that some on this forum have revived their phones so I want to know the exact step. I would really appreciate your help. :)

---------- Post added at 12:58 PM ---------- Previous post was at 12:46 PM ----------

Hello,

Do you think I can follow these same steps to revive my hard bricked phone but use a stock recovery instead of CWM?
[LG Optimus L9 P760, P765, P768, P769] JAYJAY_UPPAL:
My phone is stuck with the security error!! Can someone please help?!?!
[LG Optimus L9 P760, P765, P768, P769] simfate:
Battery

Hello,

I would like to know whether or not fastboot would still work if the battery does not have a charge? (0%). Because I was able to install the ompa4430 under TI boards, but not the second one. It seems that when I run the fastboot script, the script does not recognize the battery when I put it into the phone after the fastboot scripts instructs me to do so. I hope I make sense. I would appreciate an answer to this question. Thanks.
[LG Optimus L9 P760, P765, P768, P769] shinobisoft:
I seriously doubt it will work without the battery having some kind of charge. Most recommendations are 50% charge or better for doing anything to any device.
[LG Optimus L9 P760, P765, P768, P769] simfate:
Thanks for your response! i don't know whether my phone battery is charged or not because my phone is dead (possibly bricked, doesn't turn on) and I don't have an external battery charger right now. The reason I came to the conclusion that my battery was out of charge is because 1) the computer recognizes omap4430 even with the battery inserted 2) in the fastboot script, it goes through until it says *Done* whether I insert the battery when prompted or not. By the way, I'm talking about the fastboot script that does the work for you not the one mentioned in in the initial post of this thread. When I use the script mentioned in this thread and I get to "fastboot? y or N" and I enter "y", then it just asks again "fastboot? y or N". I enter "y" and it asks again the same question and so on.. basically it doesn't go into fastboot.
[LG Optimus L9 P760, P765, P768, P769] thakurbhai:
Thanks a lot :D

Thank you very much for this guide!

I successfully installed the CWM on my phone using this... :D

Although, I had to install the fastboot drivers 3 times, because when I installed the driver 2nd time, it was still not detecting it. Then, at the last step, I connected it to my PC with battery inside, and installed the driver again.

And yes, it worked and then I flashed the CWM successfully.

Thanks :good:
[LG Optimus L9 P760, P765, P768, P769] shinobisoft:
Ive used this method and one other with my P769 and I have no issues getting to fastboot. So I'd say there's a good possibility that your battery is the culprit. A word to the wise, never attempt to do anything on any Android device with out at least 50% battery. Full charge is obviously better. I unwittingly bought this device without doing any research first. Had I know the issues I'd run in to rooting and unlocking the bootloader I would have chosen a different device for sure. No complaints about the phone however.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
Lol I found that devmem2 inside the omap4 zip.

Have you read the text files in that zip?

The aboot (2nd bootloader) is signed and the u-boot fastboot isn't. I'll try to find the source code for the p769 u-boot? So we (you lol) can comply it to take us straight into the unlock screen.

Hopefully we won't have to make a signed p769 aboot. However, I think we might have to.
[LG Optimus L9 P760, P765, P768, P769] kuma82:
[MENTION=4501943]shinobisoft[/MENTION]

My bad, we don't have the source for p760* u-boot, someone was trying to port a u-boot. Sorry
[LG Optimus L9 P760, P765, P768, P769] LaDY Vengeance:
If only there was a way to enable USB driver support in the bootloader.
[LG Optimus L9 P760, P765, P768, P769] Prabesh07:
When I hit Y on replace u-boot mine jsut gets stuck on waiting for device.

I used CWM img

I had accidently wiped my phone so i got nothing, the LG logo shows up and the phone restarts again.

So i tried this method to boot it to CWM so that i can install the firmware.

I cannot reach to the command menu to install the /zip file/

please help me
[LG Optimus L9 P760, P765, P768, P769] sguerrini97:
You can't use this fastboot to boot an image, you can only flash/erase. Re-flash the stock u-boot and the cwm recovery.
[LG Optimus L9 P760, P765, P768, P769] sauliuksss1:
Win 8.1

This bootloader don't work for Windows 8.1 PRO (x64). Problem with drivers ... Any can help?
[LG Optimus L9 P760, P765, P768, P769] Vesterr:
Hi!!

in Windows 8.1, when I want to install drivers for TI Boards - OMAP4430 USB device. I have

and I can not install the drivers from omap4boot, and the program does not detect my phone. Help, please.. :confused:
[LG Optimus L9 P760, P765, P768, P769] RIPR:
Yes, I have exactly the same problem. Unfortunately, no one seems to care anymore :( I've found a few other simmilar topics and everywhere was somebody with Windows 8.1, who couldn't get OMAP4430 working. It's always the same. When the device connect's it is not listed in Device manager as unknown omap4430 device, but as a Unrecognized USB.

Then you just can't install the driver, because Windows thinks, that USB drivers are up-to-date. I really wish, there was a solution for this...
[LG Optimus L9 P760, P765, P768, P769] sguerrini97:
Use windows 7 or a virtual machine..

Inviato dal mio LG-P760 con Tapatalk 4
[LG Optimus L9 P760, P765, P768, P769] er.davinder:
[MENTION=4254774]sguerrini97[/MENTION]

please include this trick in your guide in the first post.. It would help lot of noobs like me in installing driver's easily . thank you.
[LG Optimus L9 P760, P765, P768, P769] aishwary55:
select prada 3.0 or option 3

guys I am confused the tutorial says select 3 (prada 3.0) but in fastboot option 3 is optimus 3d cube ... what to install?
[LG Optimus L9 P760, P765, P768, P769] sguerrini97:
You should select the Prada 3.0, maybe you have a newer version of omap4boot so the numbers are in a different order.

Inviato dal mio LG-P760 con Tapatalk 4