[Q] please help. might be dead

[redheadplantguy]

hi all. i was trying to unlock bootloader with rom toolkit, and something went wrong.
tried hard reset with power, volume and home keys, nothing.
tried to go into software upgrade to reflash kdz, nothing.
when i plug in phone, computer just beeps like it's mounting and unmounting really quickly.
lg mobile updater says phone not hooked up. it just goes "duh duh duh duh, then the sound windows makes when you unplug usb device.
i thought this was unbrickable. hehe, leave it to me.
any help would be greatly appreciated.

 

[MahdiNl]

I had the same problem,but this guide helped me a lot!

Download LG Mobile Support Tool and do the following steps:
..1. Remove the battery and the USB cable from phone.
..2. Without the battery, plug the USB cable and connect the PC to the phone with USB cable.
..3. Press and hold (VolumeUp) key and press (Power) key for 2/3 secs. You should see "S/W Upgrade" on the screen after a few seconds.
..4. Re-insert the battery in the phone.
..5. Start LG Mobile Support Tool(B2CAppSetup.exe), let it find the phone (and load drivers) and start the software update.

IMP: This method is online Software upgrade mode and faster internet will be required which will download around 500+mb file while recovering. So be prepared pals.

Sent from my LG-P760 using xda premium

 

[redheadplantguy]

I had the same problem,but this guide helped me a lot!

Download LG Mobile Support Tool and do the following steps:
..1. Remove the battery and the USB cable from phone.
..2. Without the battery, plug the USB cable and connect the PC to the phone with USB cable.
..3. Press and hold (VolumeUp) key and press (Power) key for 2/3 secs. You should see "S/W Upgrade" on the screen after a few seconds.
..4. Re-insert the battery in the phone.
..5. Start LG Mobile Support Tool(B2CAppSetup.exe), let it find the phone (and load drivers) and start the software update.

IMP: This method is online Software upgrade mode and faster internet will be required which will download around 500+mb file while recovering. So be prepared pals.

Sent from my LG-P760 using xda premium

won't go into software mode. just makes the connect/disconnect sound over and over.
was trying to get fastboot running, but now have mirror image

 

[MahdiNl]

Do you have installed the right drivers?

Sent from my LG-P760 using xda premium

 

[Lelus]

won't go into software mode. just makes the connect/disconnect sound over and over.
was trying to get fastboot running, but now have mirror image

http://forum.xda-developers.com/showpost.php?p=40121966&postcount=7
steps 1 and 2, don't worry about mirrored image in fastboot

 

[redheadplantguy]

http://forum.xda-developers.com/showpost.php?p=40121966&postcount=7
steps 1 and 2, don't worry about mirrored image in fastboot

i can't get into S/W upgrade mode. will this still work?
don't wanna just start hammering away on commands without having full picture.
when i plug in cable and hit volume button, it just connects/disconnects very quickly, giving the usb connection sound windows does.
da DEEP
DO doop
over and over

 

[Lelus]

i can't get into S/W upgrade mode. will this still work?
don't wanna just start hammering away on commands without having full picture.
when i plug in cable and hit volume button, it just connects/disconnects very quickly, giving the usb connection sound windows does.
da DEEP
DO doop
over and over

you need to do step 1 and you'll be able to get into s/w upgrade mode

 

[redheadplantguy]

you need to do step 1 and you'll be able to get into s/w upgrade mode

says waiting for device, but it won't connect
just makes that disconnect reconnect sound over and over. tried to install the fastboot stuff again, but the part where it says install drivers included, windows says unable to.
tried to uninstall all lg drivers like another thread said, laptop refuses to.
poop

 

[tribalartgod]

won't go into software mode. just makes the connect/disconnect sound over and over.
was trying to get fastboot running, but now have mirror image

I believe this is actually a Windows issue. Disconnect the phone. Right click computer, manage, device manager. Scroll down and start deleting "usb root hub(s)" at the bottom. Don't fret when the mouse control goes away. Once they are gone, reboot, and let them reinstall..

Then try again.

LG-P769 - Needs MIUI

 

[redheadplantguy]

this can be closed

thanks to everyone who tried to help, but i just took it back to T-mo, told them it died in the middle of a call and never came back on. replaced under warranty for only $20 expedited shipping.
laptop also acting wonky, so doing factory reset before I hook up new one.

 

[maxver0]

hi all. i was trying to unlock bootloader with rom toolkit, and something went wrong.
tz greatly appreciated.

Can you give us link to this toolkit thread?
I used this guide http://forum.xda-developers.com/showthread.php?t=2221102
and it went with no problems.
Waiting for device means that you doesn't have installed fastboot drivers installed correctly.
If you want to unlock it successfully then follow guide step by step. Make sure to wait 30min if you won't you may lock it permanently.

Wysyłane z mojego LG-P760 za pomocą Tapatalk 2

 

[redheadplantguy]

Can you give us link to this toolkit thread?
I used this guide http://forum.xda-developers.com/showthread.php?t=2221102
and it went with no problems.
Waiting for device means that you doesn't have installed fastboot drivers installed correctly.
If you want to unlock it successfully then follow guide step by step. Make sure to wait 30min if you won't you may lock it permanently.

Wysyłane z mojego LG-P760 za pomocą Tapatalk 2

this was the link
http://design-extreme.net/unlock-bootloader-for-lg-optimus-l9-at-official-jelly-bean-firmware/

i got my replacement, but i'm having problems rooting this one.
first time, was tedious and many steps, but this time something not working.
do you happen to have the link for problems thread handy? the b2capp setup isn't working. when trying to flash kdz, tells me not installed.