I tried rooting my LGP-769 (originally 20f) using a bin and KDZ for 20d. Halfway through, the software (on the PC) crashed, and now my phone is stuck at "S/W Upgrade" screen. It no longer appears in device manager, and the LG software used for flashing does not see it as connected, so I can't flash anything back that way. Things that I've tried:
Hard boot: no change, still stuck at S/W upgrade
Leave battery out for 15 min: no change
Can't flash because device no longer exists in Dev Manager
Do I have any options here? What went wrong?
Thanks in advance. I've only been a smartphone owner for a week and I'm worried that I've already ruined my device.
I can fastboot (just gets to mirrored LG logo), but this does not allow access to any software, nor does this change anything in device manager or the LG recovery tool.
http://forum.xda-developers.com/showthread.php?p=44756934
CM 10.1 P769
kuma82 said:
http://forum.xda-developers.com/showthread.php?p=44756934
CM 10.1 P769
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Thanks for the tip! Unfortunately this did not work for me; I posted details of how it failed in that thread, but the short story is that LG's KDZ-uploading tool does not see the phone as connected, even though the OMAP fastboot device does appear in windows' device manager. Do you have any other thoughts on how this might be fixed?
Are you sure you flashed the ice cream x & u? Try doing in manually to make sure?
CM 10.1 P769
kuma82 said:
Are you sure you flashed the ice cream x & u? Try doing in manually to make sure?
CM 10.1 P769
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I tried ICS and JB in the fastboot utility for all models on the file (p760, 768, 759 I think); none worked. Which is to say that the phone looked like it fastboot'd (according to display and dev manager), but the LG utilities (used for KDZ flashing) would always say the phone is disconnected.
What do you mean by doing it manually? I haven't seen an option like that before - interested.
When you fastboot and choose 769 ics x and you you should see it say its copying x and u. Doesn't sound like it went through proper. I have wiped completely the boot partition and flashing those 2 make it recognize the phone again.
Sent from my LG-P769 using xda app-developers app
quickfastgoninja said:
I tried ICS and JB in the fastboot utility for all models on the file (p760, 768, 759 I think); none worked. Which is to say that the phone looked like it fastboot'd (according to display and dev manager), but the LG utilities (used for KDZ flashing) would always say the phone is disconnected.
What do you mean by doing it manually? I haven't seen an option like that before - interested.
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Instructions for doing it manually.
http://forum.xda-developers.com/showpost.php?p=43642515&postcount=21
Note: if you get type
fastboot devices and nothing comes up, you might not have installed the drivers twice. If you do see fastboot installed in two locations, let me know you might have another issue.
CM 10.1 P769
kuma82 said:
Instructions for doing it manually.
http://forum.xda-developers.com/showpost.php?p=43642515&postcount=21
Note: if you get type
fastboot devices and nothing comes up, you might not have installed the drivers twice. If you do see fastboot installed in two locations, let me know you might have another issue.
CM 10.1 P769
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Thanks, I'll give that a shot tonight. What does the poster mean by "images" to move into the folder - KDZs?
quickfastgoninja said:
Thanks, I'll give that a shot tonight. What does the poster mean by "images" to move into the folder - KDZs?
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Lol I am the poster, I extracted the images .img files. You have to download the files (.img s)and put them in the "yours" folder. Open the fastboot (lelus) folder and inside you will find another folder named yours.
CM 10.1 P769
kuma82 said:
Lol I am the poster, I extracted the images .img files. You have to download the files (.img s)and put them in the "yours" folder. Open the fastboot (lelus) folder and inside you will find another folder named yours.
CM 10.1 P769
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Whoops! Sorry about that...
Ok, flashed following those procedures with those IMGs. Tried using LG Mobile Support Tool --> Upgrade Recovery, but that still hangs as usual. I'll try the Lelus method for flashing V20D kdz next. I'm guessing I should let it return to S/W Upgrade mode, and not try to keep it fastboot'd for this?
Thanks again.
More info on 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
Ok, I tried both LG update tool's recovery as well as the offline flash method - each of these in both fastboot mode as well as S/W upgrade (after fastboot + reset) - no luck, unfortunately. Update tool hangs, and offline flash says cell phone is not connected.
I've never seen fastboot drivers in more than one location in dev manager though - never saw it listed under "TI boards"? I had thought that fastboot was successful because [fastboot devices] command lists the device as connected (following manual IMG flashing).
quickfastgoninja said:
Ok, I tried both LG update tool's recovery as well as the offline flash method - each of these in both fastboot mode as well as S/W upgrade (after fastboot + reset) - no luck, unfortunately. Update tool hangs, and offline flash says cell phone is not connected.
I've never seen fastboot drivers in more than one location in dev manager though - never saw it listed under "TI boards"? I had thought that fastboot was successful because [fastboot devices] command lists the device as connected (following manual IMG flashing).
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I never used the lg recovery tool, but I heard it takes a couple of hours to download and run. Maybe you though it was hanging, but it wasn't.
CM 10.1 P769
seriously guys help....!!!
hey guys i wanted to unlock my bootloader
was following multiple guides as when i typed "adb reboot oem-unlock" it used to reboot phn normally
i used OMAPFlash_1229_2ndlastt and did something with "uboot" after that nothing is working
no s/w mode nothing... but my pc device manager detects it...
seriously guys help....!!!
so as i try to get a rom in my phone i just had the bootloader unlock and when i went to adb reboot the phone did not came back to no life no matter what i did. i would sw reboot or recovery reboot and nothing my computer recognizes is at omap and then disapears i have a MetroPCS 769 which is simmilar to T mobile on the phone it states as 760 thanks for the help also i am new to this
diego_1593 said:
so as i try to get a rom in my phone i just had the bootloader unlock and when i went to adb reboot the phone did not came back to no life no matter what i did. i would sw reboot or recovery reboot and nothing my computer recognizes is at omap and then disapears i have a MetroPCS 769 which is simmilar to T mobile on the phone it states as 760 thanks for the help also i am new to this
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Follow this Guide my friend...
hello, sorry if I will open new threat but I am super lost... and sorry for my english.. I am from Slovenia... Yesterday I just root my lg g2 d802... But when I was wanted to install bootloader my phone write me some error... but this is not important because I was repaired in ubuntu with terminal.. so I am now stuck in TWRP bootloader... Whatever I want to do nothing is possible.. I was done everything... wipe, erase, hard reset reboot even writing codes in TWRP terminals... I cant get it fastboot because I always get same errors... When I am in cmd i write adb devices and I get some serial number and recovery mode... even if I try reboot bootloader I get same respond... I am without hope not... I was trying everything what I was see on the youtube and xda forums... I am now without options and with my precious phone stucked in twrp ... ohh yea one more thing... I have instaled all drivers and everything even adb universal drivers... my computer does not recognized my phone in download mode... please respond and help me saving my little precious :crying::crying:
Kdz installation with usb connected to the pc and flashtool _ easy way
Hello i've tried to unlock my phone bootloader on my lg l9 768g but no one of the guides i used worked for me.
I can do every steps right, but when i use "Adb reboot oem-unlock" command my phone reboots but does not show the bootloader screen instead starts normally.
Drivers are fine, firmware flashing fine(v10a to v20b open europe both, also tried flashing original firmware before these two)
pc recognizes my phone. :/
Im trying in a windows 7 x64
hi here is a post that could help you..
forum.xda-developers.com/showthread.php?t=2500269
cheers
KeiFTW said:
Hello i've tried to unlock my phone bootloader on my lg l9 768g but no one of the guides i used worked for me.
I can do every steps right, but when i use "Adb reboot oem-unlock" command my phone reboots but does not show the bootloader screen instead starts normally.
Drivers are fine, firmware flashing fine(v10a to v20b open europe both, also tried flashing original firmware before these two)
pc recognizes my phone. :/
Im trying in a windows 7 x64
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Click to collapse
Hey, so basically i got my phone into bootloop and dont know how to get it back. I dont have a recovery, so i tried to flash one, but my pc isnt recognizing my phone, adb or fastboot says "waiting for device". I cant do anything in Android tho, because i cant boot into the system, so what should i do? Please help, thanks