Unlocking the bootloader on p769 is DIFFICULT, the most difficult part is working with the touch screen which is wonky during this process. I highly suggest that we wait for LG's latest Jelly Bean for p769 instead of doing this, but if you are wanting to experiment like me, then read on.
Please note that every boot will ALWAYS have a mirrored image after doing this procedure.
First and foremost, thanks to Lelus for helping me through the process. Second, you need to be very familiar in flashing KDZ offline with this procedure (thanks cmahendra)
http://forum.xda-developers.com/sho....xda-developers.com/showthread.php?p=36351786
1. Download this link to get p760 20B Europe open and flash it on p769 using the KDZ offline method.
http://csmgdl.lgmobile.com/swdata/WDLSW/LGP760/ANEUWH/V20b_00/V20B_00.kdz
2. After flashing you will notice you have two issues...Mirrored Image and Wonky touch screen. Mirrored image can be easily remedied by using a mirror to read the screen better. The Touch screen issue is the most difficult because after flashing 20B, we need to enable USB debugging in developer options. (thanks cmahendra)
Wonky Touchscreen:
This is how I got through the wonky touchscreen. Imagine putting a line in the middle of the screen crosswise (or like dividing the screen crosswise), you have to top screen and bottom screen. The Imaginary line would be the bottom of the top screen and the BOTTOM of the bottom screen (like the bottom screen's bottom is in the middle of the screen and the top of the bottom screen is in the bottom of the whole screen). It takes some practice but you will get it.
Make sure you face a mirror with your phone to get around the mirror imaged.
3. OK, now you have to go to Settings --> Developer Options ---> and tick USB debugging (You can also tick "Show touches" to make it easier).
4. LET YOUR PHONE STAY ON FOR 30 minutes or more (Very Important or you won't be able to unlock your bootloader). Then connect your device to PC and type "adb devices" and make sure your p769 is seen by the computer. Then type "adb reboot oem-unlock" This will reboot your device and send you to a "mirrored" confirmation screen. Basically just press Volume UP button to confirm unlock... then it will send you to fastboot, you can just press the power button for 10 seconds and reboot.
5. After rebooting, you need to flash 10G kdz back, in my experience, the offline flashing method by booting to SW mode did not work... It hanged up at 15% and said my device is not connected to USB. The only way for me to flash 10G KDZ back was to boot in JB (mirrored) and then instead of Emergency Mode, I used DIAG mode while the device is connected to PC. Only then was I able to flash back to 10G.
6. After flashing 10G KDZ, you won't be able to boot. Turn it off and do a hard reset (Power button + Volume UP + Menu Button).
7. Upon reboot from 10g, you will still have the mirrored image, but if you press the power button and turn it back on, the mirrored image will be fixed. Then comes the wonky touch screen. Beside from having the wonky touch screen you will notice that the whole left and right side is also inverted which makes it very difficult but doable with practice.
8. In 10G, we need to enable USB debugging again, then root the device with this procedure
http://forum.xda-developers.com/showthread.php?t=2171243
(Remember to use DIAG mode in reflashing 10G for the second time in rooting the device)
9. After rooting the device, we need to fix the touchscreen with this (Post #24)
http://forum.xda-developers.com/showthread.php?t=2182867&page=3
and go to post #24..
That's it AGAIN, I highly suggest we wait for JB for our devices instead of this.
If ever you want to overclock your GPU at 384, here is a link to do that..
https://www.dropbox.com/s/ofuijfgx4e694gl/bootoc.img
Goodluck
Awsome
I'd add ,disable your lock screen before flashing jb
Awesome work :victory:
By the way, you might want to bold the warnings involved with this process so that it stands out better. I have a feeling some people won't read the entire post and dive in without knowing exactly what they are getting into
I have successfully overclocked our GPU to 384 Nenamark 2 scores from 32.7 jumped to 36.9 Do we have a working CWM with our proper mount points?
I also noticed the OC'd the GPU at 384, I cannot OC the cpu to 1200 via kernel.
Awesome work!
I completely agree with waiting on an official update to JB.. I personally don't see much of a point in unlocking until we can boot into a custom ROM.
I've given up on this device - but with a hopeful update to JB and a hopeful official unlocking method on the horizon I may hold on.
Sent from my LG-P769 using xda app-developers app
I have installed CWM with no issues (aside from mirrored image) and doing backup at the moment. Might try CWM.
Looks like I can Overclock the CPU to 1.2ghz with the OC script and keep the GPU at 384 This thing is getting faster
I just unlocked mine,
Lelus said:
I just unlocked mine,
Click to expand...
Click to collapse
LMK if you want the boot.img with the OC'd GPU
Were you able enter fast boot after you restored 10g ?
yes, using omap4boot
Mine is now unlocked too. Back on 11a with fixed touchscreen. You weren't kidding about the touch being tricky. Took me longer to get into developer options than any other step I took the recovery.img from the jellybean root/recovery thread and flashed it in fastboot and now have working recovery too. It's mirrored like you said but it's easy enough to navigate like that. Restored data from the backup I made before starting, it's like nothing happened.
Sent from my LG-P769 using xda premium
Tablechair said:
Mine is now unlocked too. Back on 11a with fixed touchscreen. You weren't kidding about the touch being tricky. Took me longer to get into developer options than any other step I took the recovery.img from the jellybean root/recovery thread and flashed it in fastboot and now have working recovery too. It's mirrored like you said but it's easy enough to navigate like that. Restored data from the backup I made before starting, it's like nothing happened.
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
Great, LMK if you are interested with the overclocked GPU kernel at 384
BTW, if we need to flash via SW update, looks like we need the original u-boot.img and x-loader.img and enter fastboot via omap4boot. I mean this this is totally unbrickable
Tablechair said:
Mine is now unlocked too. Back on 11a with fixed touchscreen. You weren't kidding about the touch being tricky. Took me longer to get into developer options than any other step I took the recovery.img from the jellybean root/recovery thread and flashed it in fastboot and now have working recovery too. It's mirrored like you said but it's easy enough to navigate like that. Restored data from the backup I made before starting, it's like nothing happened.
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
Awesome!
Now any chance we can get cm/aokp or even better - PACman ROM booted on our 769?
Sent from my LG-P769 using xda app-developers app
I have flashed the original x-loader in my unlocked device and it seems OK so it is definitely the p769 u-boot that is locked. I also noticed that the screen is still mirrored at boot and I believe this is due to the screen size differences of the p760 and I we can find a way to fix the screen size in u-boot, then we will get the mirror image fixed.
pinoyto said:
I have flashed the original x-loader in my unlocked device and it seems OK so it is definitely the p769 u-boot that is locked. I also noticed that the screen is still mirrored at boot and I believe this is due to the screen size differences of the p760 and I we can find a way to fix the screen size in u-boot, then we will get the mirror image fixed.
Click to expand...
Click to collapse
strange, after I flashed stock xloader and uboot my screen is no longer mirrored and colors are normal at boot
Lelus said:
strange, after I flashed stock xloader and uboot my screen is no longer mirrored and colors are normal at boot
Click to expand...
Click to collapse
hmm..I remember getting a security error after flashing both..maybe we flash xloader first then uboot? or maybe send your xloader and uboot to me to try? Thanks.
pinoyto said:
hmm..I remember getting a security error after flashing both..maybe we flash xloader first then uboot? or maybe send your xloader and uboot to me to try? Thanks.
Click to expand...
Click to collapse
Yes I flashed x first but it might not matter
I'd advise anyone to be very, very careful about flashing xloader and uboot.
Lelus said:
Yes I flashed x first but it might not matter
I'd advise anyone to be very, very careful about flashing xloader and uboot.
Click to expand...
Click to collapse
Thanks, so no security error? I'll try it.
Update... I still get security error Any tips?
pinoyto said:
Thanks, so no security error? I'll try it.
Click to expand...
Click to collapse
no security error, everything is back to normal except for some reason my phone won't enter fastboot no matter what,but it was like that before I flashed v20
---------- Post added at 10:42 AM ---------- Previous post was at 10:39 AM ----------
pinoyto said:
Thanks, so no security error? I'll try it.
Update... I still get security error Any tips?
Click to expand...
Click to collapse
Do you have CWM recovery , or custom kernel ?
What if you restore to stock 10g ?
Lelus said:
no security error, everything is back to normal except for some reason my phone won't enter fastboot no matter what,but it was like that before I flashed v20
---------- Post added at 10:42 AM ---------- Previous post was at 10:39 AM ----------
Do you have CWM recovery , or custom kernel ?
What if you restore to stock 10g ?
Click to expand...
Click to collapse
I have a custom kernel.. that is why... the u-boot from original won't allow custom kernels. I'd stay with my u-boot then since it lets me OC the GPU.
Related
UNLOCKED BOOTLOADER FROM USER PAYBACK AND 4PDA FORUM
http://forum.xda-developers.com/showthread.php?t=1664322
I'm not a developer but I hope it could be useful for our L9
Re: L7 unblocked bootloader could be useful for L9?
Teohc78 said:
UNLOCKED BOOTLOADER FROM USER PAYBACK AND 4PDA FORUM
http://forum.xda-developers.com/showthread.php?t=1664322
I'm not a developer but I hope it could be useful for our L9
Click to expand...
Click to collapse
Nope, they are two different phones so it's impossible to use any work that is being done on their device on ours
Sent from my LG-P769 using xda premium
Teohc78 said:
UNLOCKED BOOTLOADER FROM USER PAYBACK AND 4PDA FORUM
http://forum.xda-developers.com/showthread.php?t=1664322
I'm not a developer but I hope it could be useful for our L9
Click to expand...
Click to collapse
Interesting.
Sent from my LG-P765 using xda app-developers app
if anyone know russian can send pm to payback with wrotes if he cans unlock bootloader also for l9
markolino631 said:
if anyone know russian can send pm to payback with wrotes if he cans unlock bootloader also for l9
Click to expand...
Click to collapse
Here -> http://4pda.ru/forum/index.php?showtopic=436618&view=findpost&p=19965075 <- man, who hacked L5 and L7 bootloaders offers patched L9 bootloader. But there no one is tested it yet. Because L9 protection more powerfull than L5/L7 and there chance what something going wrong.
In attach I put patched bootloader in case if here present some brave man, who wants to test it
AngryWolf80 said:
Here -> http://4pda.ru/forum/index.php?showtopic=436618&view=findpost&p=19965075 <- man, who hacked L5 and L7 bootloaders offers patched L9 bootloader. But there no one is tested it yet. Because L9 protection more powerfull than L5/L7 and there chance what something going wrong.
In attach I put patched bootloader in case if here present some brave man, who wants to test it
Click to expand...
Click to collapse
Thank You. Someone who is not rooted can try. I don't want to brick my rooted phone.
kevev said:
Thank You. Someone who is not rooted can try. I don't want to brick my rooted phone.
Click to expand...
Click to collapse
how much going wrong are we talking? and can it be fixed with reflashing the kdz?I ask these questions because this is currently my only working phone ( I "dissected" my galaxy exhibit in a fit of boredom)
rbraswell8 said:
how much going wrong are we talking? and can it be fixed with reflashing the kdz?I ask these questions because this is currently my only working phone ( I "dissected" my galaxy exhibit in a fit of boredom)
Click to expand...
Click to collapse
I would say a possible brick requiring a trip to LG Repair Center. But that's what warranties are for.
rbraswell8 said:
how much going wrong are we talking? and can it be fixed with reflashing the kdz?
Click to expand...
Click to collapse
I'm afraid what it can't be undone by KDZ reflashing, d'oh
right, not it.
If I had a backup phone I would dive right in but I recently sold my HD7, so it's a no go. Good luck whoever is brave enough.
Sent from my LG-P769 using xda app-developers app
---------- Post added at 05:16 PM ---------- Previous post was at 04:46 PM ----------
Maybe someone with screen mirror problem can give it a shot since they need warranty service already.
Sent from my LG-P769 using xda app-developers app
I have 2 phones so I am willing to give this a try even though I may brick it.
Here is my device status: P769BK 10g rooted.
I need to know exactly how to attempt the bootloader unlock. Do I need CWM? What software and steps to flash? etc.....
Ok I'm about ready to give this a go. I've familiarized myself with fastboot, and will flash u-boot and x-loader thru fastboot. Does anyone have an original u-boot and x-loader so I can unbrick my phone when this doesn't work?(P769)
Tablechair said:
Ok I'm about ready to give this a go. I've familiarized myself with fastboot, and will flash u-boot and x-loader thru fastboot. Does anyone have an original u-boot and x-loader so I can unbrick my phone when this doesn't work?(P769)
Click to expand...
Click to collapse
Here seems to be original files with patched files. And IDA working files... Take a look in archive.
Ok I flashed patched bootloader thru omap4fastboot. Upon flashing u-boot and x-loader the phone is bricked won't turn on or anything. Was able to go back into fastboot though and flash the original files back. Its back working again, however when booting up the screen is mirrored(just picture not touch) it stays inverted like this until I lock and unlock the phone after that its fine until next restart and a very minor inconvenience until I can get a hold of P769 u-boot and x-loader from some kind person. So confirmed not working at least on P769.
Tablechair said:
Ok I flashed patched bootloader thru omap4fastboot. Upon flashing u-boot and x-loader the phone is bricked won't turn on or anything. Was able to go back into fastboot though and flash the original files back. Its back working again, however when booting up the screen is mirrored(just picture not touch) it stays inverted like this until I lock and unlock the phone after that its fine until next restart and a very minor inconvenience until I can get a hold of P769 u-boot and x-loader from some kind person. So confirmed not working at least on P769.
Click to expand...
Click to collapse
@Tablechair
Great you have tried without fear and congrats for recovering back phone when it failed.
But tell me, was your P769 already had the mirror issue due to earlier P765 flashing? Or it appeared after above procedure you performed and now screen working fine?
What happened was:
I did not have the original bootloader file from P769. I only had the unmodified files that payday was working on. I suspect he had files from another device variant P760 or something. The screen mirror thing I haven't experienced before. I believe if I can put the proper files back it will be fixed. So, I really need someone with a full P769 dump to share with me u-boot and x-loader. The screen problem goes away shortly after boot, but I've noticed another symptom when I try to flash using the method in your thread the tool hangs after trying to contact the phone. It was very late though I could've overlooked something even though I've used that method before I will be trying again tonight after work.
Sent from my LG-P769 using xda app-developers app
xmmm maybe someone with a p760 variant to try, but first we must find a way to safe revert the trouble before trying
Tablechair said:
Ok I flashed patched bootloader thru omap4fastboot. Upon flashing u-boot and x-loader the phone is bricked won't turn on or anything. Was able to go back into fastboot though and flash the original files back. Its back working again, however when booting up the screen is mirrored(just picture not touch) it stays inverted like this until I lock and unlock the phone after that its fine until next restart and a very minor inconvenience until I can get a hold of P769 u-boot and x-loader from some kind person. So confirmed not working at least on P769.
Click to expand...
Click to collapse
Now I start to have a picture of the pioneers in tech
Quick question: is this your primary phone or just a fun/backup phone?
This is my primary phone. Thank you for your kind words but, it was actually a really foolish thing to do. Next morning after this I tried a few times to flash a kdz to get root with Lelus's new method, but it does not work something got really messed up from flashing stuff in fastboot. Now after attempting to flash kdz I get security error again, and I will most likely have to send my phone into LG for warranty service. I'm not upset about it though, if I saved a few people from trying the same and bricking their phone I am happy and it was worth it.
I have a us T-Mobile p769 and I tried to root and put on a cm10 rom and ran into this error. I have rooted many android phones and tablets and kindles, and have never had so many problems as with this phone. does anyone know of a way to restore this phone?
I have tried redoing offline method but cant not get into the phone when put into SW update mode the only other option I have is the lg recovery screen for lg data techs. if I tried to do a hard reset it just goes straight back to this screen(see attached) thank you in advance for any help.
T
rprouty39 said:
I have a us T-Mobile p769 and I tried to root and put on a cm10 rom and ran into this error. I have rooted many android phones and tablets and kindles, and have never had so many problems as with this phone. does anyone know of a way to restore this phone?
I have tried redoing offline method but cant not get into the phone when put into SW update mode the only other option I have is the lg recovery screen for lg data techs. if I tried to do a hard reset it just goes straight back to this screen(see attached) thank you in advance for any help.
Click to expand...
Click to collapse
It looks like you missed a step and did not unlock your bootloader.
To restore your phone follow this post
Lelus said:
It looks like you missed a step and did not unlock your bootloader.
To restore your phone follow this post
Click to expand...
Click to collapse
this is the part where you need to leave your phone on for an hour where it unlocks correct?
I will try that again thank you for your speedy reply.
Lelus said:
It looks like you missed a step and did not unlock your bootloader.
To restore your phone follow this post
Click to expand...
Click to collapse
It looks like I cant fix this because I cant do flash\root portion before I can do the unfixer?
rprouty39 said:
It looks like I cant fix this because I cant do flash\root portion before I can do the unfixer?
Click to expand...
Click to collapse
Fastboot and uxfix first then you should be able to flash and root from s/w mode.
Lelus said:
Fastboot and uxfix first then you should be able to flash and root from s/w mode.
Click to expand...
Click to collapse
this is where it has been sitting for a little over an hour now how will I know when it is done will there actually be a message or go back to a prompt instead of just a flashing cursor? sorry not a noob tried to see in your batch file but couldn't tell
still no luck
I tried unfix and still no luck can not get into phone and still have security error mirrored is there any possible way to fix this really need to unbrick my phone please any suggestions appreciated
rprouty39 said:
I tried unfix and still no luck can not get into phone and still have security error mirrored is there any possible way to fix this really need to unbrick my phone please any suggestions appreciated
Click to expand...
Click to collapse
What exact steps do you take ?
Make sure to fastboot your phone like described here before runing start.bat
Lelus said:
What exact steps do you take ?
Make sure to fastboot your phone like described here before runing start.bat
Click to expand...
Click to collapse
I tried to use the fast boot method in that thread but it gets stuck with a black fast boot screen on the phone and the program doesn't know what to do because none of the phones are the same as mine. so I tried to do unfix after it had fastboot screen on phone but that didn't do anything to the phone either not sure how to actually get into attached screen or have a file to upload if I could get into it.
Lelus said:
What exact steps do you take ?
Make sure to fastboot your phone like described here before runing start.bat
Click to expand...
Click to collapse
after following that post I don't know what to use for backup and this is what happens if I do unfix right after
rprouty39 said:
I tried to use the fast boot method in that thread but it gets stuck with a black fast boot screen on the phone and the program doesn't know what to do because none of the phones are the same as mine. so I tried to do unfix after it had fastboot screen on phone but that didn't do anything to the phone either not sure how to actually get into attached screen or have a file to upload if I could get into it.
Click to expand...
Click to collapse
black fastboot screen on the phone is what you are supposed to see.you need to run command prompt as administrator
Lelus said:
black fastboot screen on the phone is what you are supposed to see.you need to run command prompt as administrator
Click to expand...
Click to collapse
that's what I saw was the black fastboot screen and then I ran unfix with admin rights cmd prompt it did something but couldn't see what it was then I put it in s/w upgrade and tried to do root and flash guide but I cant get that to work because I cant adb into the phone or can I do the root lelus from the fast boot prompt?
rprouty39 said:
that's what I saw was the black fastboot screen and then I ran unfix with admin rights cmd prompt it did something but couldn't see what it was then I put it in s/w upgrade and tried to do root and flash guide but I cant get that to work because I cant adb into the phone or can I do the root lelus from the fast boot prompt?
Click to expand...
Click to collapse
how about your screen ? is it ok now ?
Lelus said:
how about your screen ? is it ok now ?
Click to expand...
Click to collapse
the screen isn't inverted anymore but still says security error and then after a few minutes it shuts down
rprouty39 said:
the screen isn't inverted anymore but still says security error and then after a few minutes it shuts down
Click to expand...
Click to collapse
good, you are done with fastboot.
Put your phone into s/w upgrade
Do following steps 1, 2, 3, 4, 9, 10, 11,(offline flash) from [GUIDE] Root L9 ICS/JB with New Lelus method & Offline Flashing [LOCKED BL] [31-Mar] by cmahendra Your phone should boot normally after that. Then from same guide steps 0, 5, 7, 8 (root).
Lelus said:
good, you are done with fastboot.
Put your phone into s/w upgrade
Do following steps 1, 2, 3, 4, 9, 10, 11,(offline flash) from [GUIDE] Root L9 ICS/JB with New Lelus method & Offline Flashing [LOCKED BL] [31-Mar] by cmahendra Your phone should boot normally after that. Then from same guide steps 0, 5, 7, 8 (root).
Click to expand...
Click to collapse
thank you for all your help so far you are a life saver!!! I did 1-11 so far a few more things and I think I am in the clear...
1st do I need to run unfix before I run 0-8 root
2nd after that do I do # 12
3rd is there a good JB I can install on this phone with out having this problem again
rprouty39 said:
thank you for all your help so far you are a life saver!!! I did 1-11 so far a few more things and I think I am in the clear...
1st do I need to run unfix before I run 0-8 root
2nd after that do I do # 12
3rd is there a good JB I can install on this phone with out having this problem again
Click to expand...
Click to collapse
You won't need unfix anymore, #12 and #13 can be done after you completely restore your phone.
Pinoyto has been working on CM10.1 ,which works quite alright but installation might be tricky and it needs unlocked bootloader.
Lelus said:
You won't need unfix anymore, #12 and #13 can be done after you completely restore your phone.
Pinoyto has been working on CM10.1 ,which works quite alright but installation might be tricky and it needs unlocked bootloader.
Click to expand...
Click to collapse
ok that's why I started all this is for JB like I said earlier I have rooted and installed roms on a lot of android devices just never have run into one like this phone especially this crazy stuff where u have to guess on where to click
rprouty39 said:
ok that's why I started all this is for JB like I said earlier I have rooted and installed roms on a lot of android devices just never have run into one like this phone especially this crazy stuff where u have to guess on where to click
Click to expand...
Click to collapse
another question I put 10g back on and used the bin for it but how do I get the back and menu buttons working and get it to stop having to guess where to click on ok and icons? I am trying to do step #12 and #13. if that cm10 works it should be the same way I installed the 760 cm10 I installed and messed up because I forgot to unlock bootloader first
rprouty39 said:
another question I put 10g back on and used the bin for it but how do I get the back and menu buttons working and get it to stop having to guess where to click on ok and icons? I am trying to do step #12 and #13. if that cm10 works it should be the same way I installed the 760 cm10 I installed and messed up because I forgot to unlock bootloader first
Click to expand...
Click to collapse
digitizer fix
cwm from #12 isn't exactly proper recovery , it works mostly as backup/restore for stock ics, you won't be able to install any roms from it.
I take no responsibility for any damages incurred to your phone
Please use this script only when necessary
Here is a little script I put together to fastboot L9s with ability to flash/restore ics xloader and uboot (p760, p765, p768, p769) jb (p760)
*I've only tested it on Win 7, but it should work on Vista , not sure about XP and 8
Very useful post about installing the drivers
*Some phones may need a different timing, 4 seconds won't work, worth to try between 0 to 4s and see what works best
Original thread about fastboot
http://forum.xda-developers.com/showthread.php?t=2119090
It's based on wpark - [DEV][Bootloader] u-boot / omap4boot for P920/P720/P940 and its variant
update: file updated, mylk Thanks for catching the mistake!
update2: added p769 20f
Thanks, I'll try this out once I'm home, maybe my phone will finally let me fastboot. Whenever I've tried before, it just normally reboots, doesn't switch to fastboot mode.
Sent from my LG-P768
i think there is some errot in your start.bat .
IF /I '%INPUT%'=='6' GOTO Selection5 ( i think it should be Selection6 , right ? )
and here is my p1.bin an p2.bin . mine is P765 JB (HongKong V20D) . hope you can put this into your file . and may help others .
View attachment 1986726
Tried the method in the link in the 1st post, didn't work. Tried this, still nothing. I get the same "unexpected 2ndstage response" error.
is there somebody who has tried fastboot ?
how is the screen like of the phone ?
is it just a black screen ?
and why the cmd just go to the folder of "yours" then i cant find anything in this folder .
sorry for my nood question ......
cris7i said:
Tried the method in the link in the 1st post, didn't work. Tried this, still nothing. I get the same "unexpected 2ndstage response" error.
Click to expand...
Click to collapse
Both work the same under the hood. Perhaps you've wrong drivers if you get same error msg.
mylk said:
is there somebody who has tried fastboot ?
how is the screen like of the phone ?
is it just a black screen ?
and why the cmd just go to the folder of "yours" then i cant find anything in this folder .
sorry for my nood question ......
Click to expand...
Click to collapse
#1 is just a general fastboot, you can put whatever (boot.img, recovery.img, etc) you want to flash via fastboot in "yours" folder - type: fastboot devices and you'll see if your phone is recognized
and the rest is mainly for recovery, ics xloaders and uboots work nicely with offline flashing method also several people mistakenly soft bricked their phones with omap4boot by flashing prada files which can't happen with this tool
For me general fastboot works on ArchLinux. But I only put recovery with it...
Rixx666 said:
For me general fastboot works on ArchLinux. But I only put recovery with it...
Click to expand...
Click to collapse
of course if you have functional rom and unlocked bootloader you don't need it
Hi there, its been a while since I tried fastboot again, but I have good news. Fastboot worked on my P768 using this method, I selected option 1. Then I was able to send recovery to my phone and then root the phone using a flashable SuperSU zip! 'adb reboot recovery' takes me straight into CWM!
I have some questions though.
Is fastboot permanently on the phone like it is on the P760 now? or do I have to use this program each time to send fastboot commands?
Does this mean that I could potentially flash a custom rom to my phone now? I know all the custom roms out there are not for the P768, so I will get camera problems. But is this the missing piece of the puzzle for custom rom development/testing?
Thank you lelus for this great tool!
donk165 said:
Hi there, its been a while since I tried fastboot again, but I have good news. Fastboot worked on my P768 using this method, I selected option 1. Then I was able to send recovery to my phone and then root the phone using a flashable SuperSU zip! 'adb reboot recovery' takes me straight into CWM!
I have some questions though.
Is fastboot permanently on the phone like it is on the P760 now? or do I have to use this program each time to send fastboot commands?
Click to expand...
Click to collapse
Fastboot is definitely there but something doesn't get passed along during adb reboot bootloader or oem-unlock and phone just reboots instead of booting to fastboot.
Does this mean that I could potentially flash a custom rom to my phone now? I know all the custom roms out there are not for the P768, so I will get camera problems. But is this the missing piece of the puzzle for custom rom development/testing?
Click to expand...
Click to collapse
I'm pretty sure* you can use Android Kitchen to replace these files in latest Cyanogenmod zip with ones from p768 jb and have camera working.
*i might be wrong
Lelus said:
Fastboot is definitely there but something doesn't get passed along during adb reboot bootloader or oem-unlock and phone just reboots instead of booting to fastboot.
I'm pretty sure* you can use Android Kitchen to replace these files in latest Cyanogenmod zip with ones from p768 jb and have camera working.
*i might be wrong
Click to expand...
Click to collapse
great, keep it up @donk165
Thanks. When I find the time. I'm going to make a guide for unlocking the boot loader, pushing CWM with fastboot and rooting.
I'm not confident in building CM, but I did see another user who was willing to try but was stuck with a locked boot loader. Hopefully together we can get the ball rolling for P768 development.
Sent from my LG-P768 using xda app-developers app
donk165 said:
Thanks. When I find the time. I'm going to make a guide for unlocking the boot loader, pushing CWM with fastboot and rooting.
I'm not confident in building CWM, but I did see another user who was willing to try but was stuck with a locked boot loader. Hopefully together we can get the ball rolling for P768 development.
Sent from my LG-P768 using xda app-developers app
Click to expand...
Click to collapse
i think we need help from devs to port camera from official p760 cm to p768 maybe @markolino631 can do it for us, seen we had unlocked bootloader and able to push cwm using fastboot.
I got a P769 from a friend and it is total dead,black screen, no SW update or hard reset key combinations works, only can fastboot and shows a mirrored LG logo , on top right it says V0.5, but unable to flash x-loader, u-boot or recovery, always show the error "remote partition does not exists", i tried to erase the partitions with fastboot but still the error is same. does somebody experienced the same? they call this phone un-brickable
AttiqAamir said:
I got a P769 from a friend and it is total dead,black screen, no SW update or hard reset key combinations works, only can fastboot and shows a mirrored LG logo , on top right it says V0.5, but unable to flash x-loader, u-boot or recovery, always show the error "remote partition does not exists", i tried to erase the partitions with fastboot but still the error is same. does somebody experienced the same? they call this phone un-brickable
Click to expand...
Click to collapse
My guess is corrupted nand or partition table.
What did your friend do to the phone?
Well I don't know, he just sent me that it is not booting. Is there any tool / way to initialize the nand?
AttiqAamir said:
Well I don't know, he just sent me that it is not booting. Is there any tool / way to initialize the nand?
Click to expand...
Click to collapse
Not that I know of
Hey I know this has been a long time to reply but since nothing is working try this command in fastboot
fastboot oem format
I found this information here
http://www.omappedia.com/wiki/Android_Fastboot
The website has a lot of information
Sent from my LG-P769 using xda app-developers app
kuma82 said:
Hey I know this has been a long time to reply but since nothing is working try this command in fastboot
fastboot oem format
I found this information here
http://www.omappedia.com/wiki/Android_Fastboot
The website has a lot of information
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Just heads up, the fastboot files are from lg prada p940 which has somewhat different partition setup but it's definitely worth trying as a last resort if nothing else works.
Thank you for your help, i tried as you advised but it failed it replied as
FAILED (remote failure)
finished. total time: 0.001s
Hey Guys. I tried to unlock my bootloader by flashing p760 euro. I cant get to unlock but now i have given up. How can i flash back to p769 stock firmware and fix the wonky touch screen and reversed image. I have flashed several phones in the past but this one just doesnt want to work for me. Thanks very much in advance.
zironia said:
Hey Guys. I tried to unlock my bootloader by flashing p760 euro. I cant get to unlock but now i have given up. How can i flash back to p769 stock firmware and fix the wonky touch screen and reversed image. I have flashed several phones in the past but this one just doesnt want to work for me. Thanks very much in advance.
Click to expand...
Click to collapse
Use the offline kdz method to get back on 10G rooted. Search for lelus' screen fix and apply.
Basically follow links here http://forum.xda-developers.com/showthread.php?t=2198114
Skip the flashing offline kdz of euro 20b, do the rest.
p769 wonky mirror touch screen
zironia said:
Hey Guys. I tried to unlock my bootloader by flashing p760 euro. I cant get to unlock but now i have given up. How can i flash back to p769 stock firmware and fix the wonky touch screen and reversed image. I have flashed several phones in the past but this one just doesnt want to work for me. Thanks very much in advance.
Click to expand...
Click to collapse
I Have the same problem I tried unlocking my boot loader but when i got to do this step on the lelus method: adb reboot oem-unlock.....the phone reboots normally and i dont see a prompt to unlock the bootloader i waited more than a half a hour more than 3 times. NOW i am stuck with the mirror touch screen. now my phone is nothing please help.../! or is there any way i could fix this or fix the mirror screen ...please i will really appreciated.
This process is just ridiculous. Really, LG....what is the point in making this all mission impossible! Ugh! :banghead:
Sent from my LG-P769 using XDA Premium 4 mobile app
You can also use Smartflashtool and just pick the .fls file. Works without any problem Way faster and easier
N00BY0815 said:
You can also use Smartflashtool and just pick the .fls file. Works without any problem Way faster and easier
Click to expand...
Click to collapse
Can you elaborate on this? I've tried to use the Smartflashtool to fix this problem and haven't had any luck.
Havent used it in a long time, but in fact you only need smartflashtool (sft), the fls file you extacted from the kdz file and that's basically it. Reboot your phone in download mode and open sft. In there change to the correct tab, choose your fls (dont remember which field, since it is REALLY long ago) hit start and it should update your baseband.
N00BY0815 said:
Havent used it in a long time, but in fact you only need smartflashtool (sft), the fls file you extacted from the kdz file and that's basically it. Reboot your phone in download mode and open sft. In there change to the correct tab, choose your fls (dont remember which field, since it is REALLY long ago) hit start and it should update your baseband.
Click to expand...
Click to collapse
Great idea but how do you get past the magic number does not match issue? If you have the model.dll file for the p769 could you please forward so I can replace the one I have. Mine is for the 940
Sent from my LG-P769 using xda-developers app. 'tis the season to give thanks so push the button already!
Like I said, I only inserted the fls file and there was no magic number error.
Maybe check the p970 forum, there is another version of SFT. Maybe it was this one, that worked.
Well that would be great if we could get that to work for our phone because it take like three minutes to flash. This would be an alternate to the offline flash.
P769v20h- 'tis the season to give thanks so push the button already!
Ok again:
It works to flash the BASEBAND ONLY!
It does NOT and I repeat N O T work for the full firmware.
For this to work we would need a new modell.dll, which we probably can only get from LG itself, or a REALLY good reverse engineer here on the forum. But I really doubt anyone wants to do this. I was also talking to xonar_ and he is like an android god to me. He confirmed, that it's very hard, up to impossible to get this to work. I also tested a pack made by him, but it also wouldnt work. If anyone is interested, go ahead an contact him. He is a really nice guy and explains everything very much in detail, if you nicely ask for
Sent from my LG-P760 using xda app-developers app
N00BY0815 said:
Ok again:
It works to flash the BASEBAND ONLY!
It does NOT and I repeat N O T work for the full firmware.
For this to work we would need a new modell.dll, which we probably can only get from LG itself, or a REALLY good reverse engineer here on the forum. But I really doubt anyone wants to do this. I was also talking to xonar_ and he is like an android god to me. He confirmed, that it's very hard, up to impossible to get this to work. I also tested a pack made by him, but it also wouldnt work. If anyone is interested, go ahead an contact him. He is a really nice guy and explains everything very much in detail, if you nicely ask for
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
Maybe you and I are not talking about the same thing. I'm talking about the SmartFlash Tool that is in this post. I don't know what you are talking about.
Fixed my touch screen on LG P769
I am now able to fix my wonky touch screen finally. Thank God.
After spending the whole day Saturday to unlock the bootloader and install custom rom, I finally gave up after 24 hours. Next I wanted my phone to be in working condition by Sunday night.
I just flashed the stock kdz (V20h) for t-mobile usa. I had this one originally. My display was okay (after initial switch off and on) but touch was still not good.
After that I just did root my phone and installed Super Su. as mentioned in other threads
Then followed the command to cat v6.bin into some firmware file, as mentioned in other threads. It feels so good to get the touch screen working again.
The display is still mirrored when phone boots, but first time i switch off the screen and on again, and it's fixed.
I will edit this post, later with more details and links later.
Also, I did a Factory Data reset, after flashing v20h kdz. But I believe it was not required. In fact, it was very difficult to enter passwords for wifi, google play account etc with the wonky touch screen.
Sounds like you got it under control. Here is a zip file Kuma made that I use when I try to unlock bootloader. Sometimes I have to install it twice but it's the fastest way to get back to normal
https://mega.co.nz/#!SA8ijQ4K!ZbPwmAZIV4rrNod0TY8mGiyB8Rc4iGcOkVzDmS4TdMM
LG-P769V20H 'tis the season to give thanks so hit the button already!
Nathan.7118391 said:
Sounds like you got it under control. Here is a zip file Kuma made that I use when I try to unlock bootloader. Sometimes I have to install it twice but it's the fastest way to get back to normal
LG-P769V20H 'tis the season to give thanks so hit the button already!
Click to expand...
Click to collapse
So, how do you use this zip to fix ur touch screen? How do u install it if you don't have cwm recovery installed.
Thanks.
Sent from my LG-P769 using xda app-developers app
desi.techiee said:
So, how do you use this zip to fix ur touch screen? How do u install it if you don't have cwm recovery installed.
Thanks.
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Work through the wonky screen and install artas182x cwm recovery for locked bootloaders (it's a 2nd init recovery) & Robert busybox.
I have both apps on my themed rom for locked bootloaders http://forum.xda-developers.com/showthread.php?p=46151882
Sent from my LGMS769 using XDA Premium 4 mobile app
Hi All,
After a failed attempt to root my L9 769, I have an issue where when the phone is turned on, it does not boot, it goes to a screen with the LG logo and the words "security error" beneath it. The phone then powers off. The only thing I have access to on the phone is this screen and the software update mode. I used the offline flash method in my root attempt. I am sure I screwed up in the process. I have scoured the internet in an attempt to resolve this, but I have yet been able to. This seems to be a fairly common problem when a root attempt fails, however I cannot correct this.
Things I have tried:
Fastboot: I try to run fastboot, but it stops at waiting for device.
Offline flash: I tried the offline flash method, but the tool freezes at 15% saying the device cannot be found.
Online flash: The tool recognizes the phone but sees it as being up to date. I try to use the recovery option but it locks up at analyzing the phone.
I am at a loss. Any help would be greatly appreciated.
Thanks,
J
jlj012 said:
Hi All,
After a failed attempt to root my L9 769, I have an issue where when the phone is turned on, it does not boot, it goes to a screen with the LG logo and the words "security error" beneath it. The phone then powers off. The only thing I have access to on the phone is this screen and the software update mode. I used the offline flash method in my root attempt. I am sure I screwed up in the process. I have scoured the internet in an attempt to resolve this, but I have yet been able to. This seems to be a fairly common problem when a root attempt fails, however I cannot correct this.
Things I have tried:
Fastboot: I try to run fastboot, but it stops at waiting for device.
Offline flash: I tried the offline flash method, but the tool freezes at 15% saying the device cannot be found.
Online flash: The tool recognizes the phone but sees it as being up to date. I try to use the recovery option but it locks up at analyzing the phone.
I am at a loss. Any help would be greatly appreciated.
Thanks,
J
Click to expand...
Click to collapse
About offline flash I had the same problem that it couldn't connect to my device but when I used another computer it could find it.
jlj012 said:
Hi All,
After a failed attempt to root my L9 769, I have an issue where when the phone is turned on, it does not boot, it goes to a screen with the LG logo and the words "security error" beneath it. The phone then powers off. The only thing I have access to on the phone is this screen and the software update mode. I used the offline flash method in my root attempt. I am sure I screwed up in the process. I have scoured the internet in an attempt to resolve this, but I have yet been able to. This seems to be a fairly common problem when a root attempt fails, however I cannot correct this.
Things I have tried:
Fastboot: I try to run fastboot, but it stops at waiting for device.
Offline flash: I tried the offline flash method, but the tool freezes at 15% saying the device cannot be found.
Online flash: The tool recognizes the phone but sees it as being up to date. I try to use the recovery option but it locks up at analyzing the phone.
I am at a loss. Any help would be greatly appreciated.
Thanks,
J
Click to expand...
Click to collapse
You need a recovery.img from p769 and flash it through fastboot
Download https://mega.co.nz/#!7RxjnDyS!gYY7Zs6naT4fa3Oj1FfIFu2O_sfEtL1awPD-HOSOu_E
Then type in fastboot "fastboot flash recovery p4_769.img"
Sent from my LG-P769 using Tapatalk 4
I have the same issue adb won't connect no fastboot
Sent from my Amazon Kindle Fire using xda app-developers app
You need to flash the ice cream x & u boot for your device (in fastboot) to get the offline flash running again.
Some help on how to install fastboot
Did you install the omap4430 driver twice?
Open an elevated command prompt and type
Code:
SET DEVMGR_SHOW_NONPRESENT_DEVICES=1
devmgmt.msc
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Then open the Device Manager and see if you have the omap4 driver installed twice (in two locations)
Note: In Device Manager click the View tab and select Show hidden devices
If you don't see the omap driver installed twice, do this
Select the "other devices" and start deleting/uninstalling all of the devices you find here (I think the device you are looking for is "lg u2" but not 100% sure)
Once you have uninstalled all of the unknown drivers you found, run the start.bat again and follow the directions to flash the x & u img's (for your device).
Now go back to device manager and find the new unknown/other device created (should be lg u2) and install the omap4430 like you did the first time.
After you have done all this, rerun the start.bat and hopefully it will work for you.
Another thing, If you do see the omap driver installed twice, then it has to be your timing when you enter the battery. Keep trying different times to enter the battery
example. wait 1 second and enter battery, if that doesn't work wait 2 seconds then enter battery and etc.
Good luck
No luck yet with connecting to fastboot, I will give this a shot and report back. Thank you.
You were absolutely right, the issue was with having multiple drivers. I followed your steps and restored my phone to life. Thank you so much.
jlj012 said:
No luck yet with connecting to fastboot, I will give this a shot and report back. Thank you.
Click to expand...
Click to collapse
Your are welcome, now hit the thanks button, it makes me feel good, Lol.
CM 10.1 P769
kuma82 said:
Your are welcome, now hit the thanks button, it makes me feel good, Lol.
CM 10.1 P769
Click to expand...
Click to collapse
Lol..
Sent from my LG-P769 using Tapatalk 4
Got fastboot working, but now what?
kuma82 said:
You need to flash the ice cream x & u boot for your device (in fastboot) to get the offline flash running again
Click to expand...
Click to collapse
@kuma82,
Before I start, I had NO IDEA how crazy the L9 was! I've rooted/unlocked/custom recoveried/custom ROMed 4 other phones without any major set backs prior to hitting this wall.
Also, this is my daughter's phone and I'm really took a lot of precautions before starting.
Here is what I did prior to attempting to wipe (factory reset) and install CM 10.1 (here):
Device model: P769
[was] rooted
CWM Recovery [was] installed
Stock JB (T-Mobile US) ROM backed up (full nandroid)
I was concerned about the many submodels of the L9 and verified both in the about phone within the ROM settings as well as what's printed/etched below the battery under the back cover. Both checked out to be P769.
I ran `adb reboot recovery` and then proceeded to wipe/factory rest from within CWM recovery. After this, I installed the ROM zip from the external sdcard. It failed the update script's assert of ro.product.id and would not install. OK, bummer, I'll just restore the nandroid backup. Nope. It was unable to restore /system and so now I really got concerned. I then found the weirdest thing of all. After seeing what is asserted in the update script for the ROM zip, I ran getprop for each of the properties it checks for and got back the Prada 3D "p940"!
Well now I felt like I was in a world of pain, so I decided to hack the update script so that "p940" would be accepted. Well now the install went fine without any errors reported. I proceeded to flash the latest gapps for 4.2.2 and it too installed fine. GREAT! Now for the system boot.........
From that point on, I've been stuck in LG Security Error land
I was able to get the special fastboot to connect (after many failed attempts) by selecting option 5 for ICS x & u flashing.
Could someone be please be kind enough to help me get my daughter's phone back to some ROM? I'm alright with even stock right now. At least then she'll have a functioning phone and I could even extract apps to restore from the CWM nandroid I made via Titanium.
peace.
erraggy said:
@kuma82,
Before I start, I had NO IDEA how crazy the L9 was! I've rooted/unlocked/custom recoveried/custom ROMed 4 other phones without any major set backs prior to hitting this wall.
Also, this is my daughter's phone and I'm really took a lot of precautions before starting.
Here is what I did prior to attempting to wipe (factory reset) and install CM 10.1 (here):
Device model: P769
[was] rooted
CWM Recovery [was] installed
Stock JB (T-Mobile US) ROM backed up (full nandroid)
I was concerned about the many submodels of the L9 and verified both in the about phone within the ROM settings as well as what's printed/etched below the battery under the back cover. Both checked out to be P769.
I ran `adb reboot recovery` and then proceeded to wipe/factory rest from within CWM recovery. After this, I installed the ROM zip from the external sdcard. It failed the update script's assert of ro.product.id and would not install. OK, bummer, I'll just restore the nandroid backup. Nope. It was unable to restore /system and so now I really got concerned. I then found the weirdest thing of all. After seeing what is asserted in the update script for the ROM zip, I ran getprop for each of the properties it checks for and got back the Prada 3D "p940"!
Well now I felt like I was in a world of pain, so I decided to hack the update script so that "p940" would be accepted. Well now the install went fine without any errors reported. I proceeded to flash the latest gapps for 4.2.2 and it too installed fine. GREAT! Now for the system boot.........
From that point on, I've been stuck in LG Security Error land
I was able to get the special fastboot to connect (after many failed attempts) by selecting option 5 for ICS x & u flashing.
Could someone be please be kind enough to help me get my daughter's phone back to some ROM? I'm alright with even stock right now. At least then she'll have a functioning phone and I could even extract apps to restore from the CWM nandroid I made via Titanium.
peace.
Click to expand...
Click to collapse
To install custom rom or CM10 you need to unlock bootloader first. You should follow kuma82 in his post above to flash back stock rom.
The security error is because you didn't unlock it (sorry to hear that). Just flash with fastboot ice x & u for p769. Then put your phone in s/w upgrade and run the offline flash.
If you need anymore help, holla! I don't want your daughter mad at you
kuma82 said:
The security error is because you didn't unlock it (sorry to hear that). Just flash with fastboot ice x & u for p769. Then put your phone in s/w upgrade and run the offline flash.
If you need anymore help, holla! I don't want your daughter mad at you
Click to expand...
Click to collapse
I swear I read every link you posted above and still could not figure out what: "flash with ice x & u" is. I downloaded the fastboot zip and ran start.bat and selected option 5 for ICS x & u for p769 and that got me an inverted LG fastboot screen. I was also able to then choose option 1 for fastboot which dropped me into an empty yours directory.
It was midnight and I had at least 8 browser tabs open to various xda posts, but I still couldn't figure out what I needed to do with the start.bat next.
Thanks in advance. My weekend is dedicated to solely fixing her phone
Sent from my HTC Sensation using Tapatalk 4
jlj012 said:
Hi All,
After a failed attempt to root my L9 769, I have an issue where when the phone is turned on, it does not boot, it goes to a screen with the LG logo and the words "security error" beneath it. The phone then powers off. The only thing I have access to on the phone is this screen and the software update mode. I used the offline flash method in my root attempt. I am sure I screwed up in the process. I have scoured the internet in an attempt to resolve this, but I have yet been able to. This seems to be a fairly common problem when a root attempt fails, however I cannot correct this.
Things I have tried:
Fastboot: I try to run fastboot, but it stops at waiting for device.
Offline flash: I tried the offline flash method, but the tool freezes at 15% saying the device cannot be found.
Online flash: The tool recognizes the phone but sees it as being up to date. I try to use the recovery option but it locks up at analyzing the phone.
I am at a loss. Any help would be greatly appreciated.
Thanks,
J
Click to expand...
Click to collapse
I've been wanting to try this: go to your computer and check your device manager and disable the LG drivers then try the offline flash again. Kuma way works but it's very long, found this while I was reading but never tried for our phones. Same problem though as updating stops at 15 %
Sent from my LG-P769(v20f) using the xda-developers app. Hit the thanks bottom, makes me feel good!
erraggy said:
I swear I read every link you posted above and still could not figure out what: "flash with ice x & u" is. I downloaded the fastboot zip and ran start.bat and selected option 5 for ICS x & u for p769 and that got me an inverted LG fastboot screen. I was also able to then choose option 1 for fastboot which dropped me into an empty yours directory.
It was midnight and I had at least 8 browser tabs open to various xda posts, but I still couldn't figure out what I needed to do with the start.bat next.
Thanks in advance. My weekend is dedicated to solely fixing her phone
Sent from my HTC Sensation using Tapa talk 4
Click to expand...
Click to collapse
More help with fastboot
http://forum.xda-developers.com/showpost.php?p=44578108&postcount=34
http://forum.xda-developers.com/showpost.php?p=44653501&postcount=55
Another thing, more than likely, after you flash with the r&d tool you will need to do a hard reset because you flashed cyanogen. Also, you will still need to root to fix the touch screen.
CM 10.1 P769
Sent from my LG-P769 using xda app-developers app
kuma82 said:
More help with fastboot
http://forum.xda-developers.com/showpost.php?p=44578108&postcount=34
http://forum.xda-developers.com/showpost.php?p=44653501&postcount=55
CM 10.1 P769
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
Yeah, I was able to repeatedly get the inverted LG fastboot screen and see everything you saw in device manager as well as successfully get `fastboot devices` to show (echo) the device. I even tried `fastboot flash recovery p4_769.img` with the file linked in post #3 and it flashed without error.
Here's my problem: What do I need to do now that I have a working way to run fastboot commands? Is there a recovery image I need to flash (stock)? Is there a boot image I need to flash? Or, is there some other fastboot command I need to run?
I'm assuming the advice you're giving me is to ultimately get a stock ROM back on her phone. Is that correct?
I'd really like to unlock the bootloader so that I can do what I know with CWM: backup, wipe, restore, flash, etc... If that is something I can do from where I'm at now, I'd prefer to put the effort in to that. If this darned 'Security Error' splash message must be resolved by getting back to a stock ROM first, then I'm game.
Final request for clarification: Am I still needing to "flash the ice cream x & u boot for your device (in fastboot) to get the offline flash running again"? If so, could you please provide instructions for that step? So far all of the steps linked here have been to get Windows drivers sorted out and fastboot working. I've got that now.
Thanks again!
erraggy said:
Yeah, I was able to repeatedly get the inverted LG fastboot screen and see everything you saw in device manager as well as successfully get `fastboot devices` to show (echo) the device. I even tried `fastboot flash recovery p4_769.img` with the file linked in post #3 and it flashed without error.
Here's my problem: What do I need to do now that I have a working way to run fastboot commands? Is there a recovery image I need to flash (stock)? Is there a boot image I need to flash? Or, is there some other fastboot command I need to run?
I'm assuming the advice you're giving me is to ultimately get a stock ROM back on her phone. Is that correct?
I'd really like to unlock the bootloader so that I can do what I know with CWM: backup, wipe, restore, flash, etc... If that is something I can do from where I'm at now, I'd prefer to put the effort in to that. If this darned 'Security Error' splash message must be resolved by getting back to a stock ROM first, then I'm game.
Final request for clarification: Am I still needing to "flash the ice cream x & u boot for your device (in fastboot) to get the offline flash running again"? If so, could you please provide instructions for that step? So far all of the steps linked here have been to get Windows drivers sorted out and fastboot working. I've got that now.
Thanks again!
Click to expand...
Click to collapse
Okay, did you get all your info about unlocking the bootloader from carloswii5 video? So you had flashed 20b kdz right?
You gave me a hand full Lola, but I'm help you out. It get is going to take me some time to give you a guide, but I'll give you everything you need today and yes, you need to get back to stock.
I'll send you another link on how to use fast boot manually. Plus it has the images for ice cream. But hold up
Sent from my LG-P769 using xda app-developers app
kuma82 said:
Okay, did you get all your info about unlocking the bootloader from carloswii5 video? So you had flashed 20b kdz right?
You gave me a hand full Lola, but I'm help you out. It get is going to take me some time to give you a guide, but I'll give you everything you need today and yes, you need to get back to stock.
I'll send you another link on how to use fast boot manually. Plus it has the images for ice cream. But hold up
Sent from my LG-P769 using xda app-developers app
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THANKS!
Her phone had the stock TMOUS jelly bean ROM that we received OTA. I had only rooted her phone previous to my CM10.1 fiasco attempt.
So I've never flashed anything (successfully at least) on her phone. All of my previous android experience has been on 3 nexuses (One, S, 4) and my current HTC Sensation. That means I've only unlocked one bootloader that didn't support the fastboot oem method
I'm an experienced dev with the entire weekend to "play" with my daughter's p769
I also promise to provide lengthy posts in the Optimus L9 forums to help any future people from soft bricking any more devices.
Sent from my HTC Sensation using Tapatalk 4
This will tell you how to use fastboot manually http://forum.xda-developers.com/showpost.php?p=43642515&postcount=21
The system image is to big to flash with fastboot, sucks.
1. Use the above to get back on stock (you need 10g kdz).
To enter s/w upgrade remove battery. Hold volume up and enter USB cable, then put the battery back in.
Sent from my LG-P769 using xda app-developers app
kuma82 said:
This will tell you how to use fastboot manually http://forum.xda-developers.com/showpost.php?p=43642515&postcount=21
The system image is to big to flash with fastboot, sucks.
1. Use the above to get back on stock (you need 10g kdz).
To enter s/w upgrade remove battery. Hold volume up and enter USB cable, then put the battery back in.
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
UH OH... The "volume up" method isn't working on this device. I posted more details about it here. I'm beginning to think I may need to return the phone. I never thought flashing a ROM zip in CWM recovery could brick the phone. When I restoring the CWM backup also failed (when I at least was in CWM recovery which now is inaccessible), I freaked.
P.S. - I'm all out of thanks for the day. I think you got the lion's share though