I have a friend that has an unlocked LG P506GO from AT&T, one of this days he connected the phone to charger and the screen went blank since then the phone won't boot at all, I tried to access to emergency mode and fastboot but same thing the screen goes blank and nothing comes up just the keys and the screen turns on, when I connect the device to the computer using back+vol++power the computer installed the drivers and I can try to flash it with KDZ but it fails since the phone restarts in the middles of the process and I am not sure if I am using the correct files to unbrick it, is there any that I can do to unbrick the device?
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So i post a lot of threads getting help of unblocking my phone, but the replies that is given won't work
[Heres all the info what i did with this phone]
My phone is an Lg p769 T-mobile(Bricked)V20H
All i did with this phone is rooted it, to get root access to moving files.
I have a Locked Boot loader.
I Accidentally installed chain fire 3d without knowing its not compatible with JellyBean.
So my problem is I'm stuck in boot loop.
when i turn it on its stuck on Lg logo. (No Security Error)
I am able to get into S/w upgrade mode but not Recovery mode.
My PC (Windows 7 Professional) won't detect my phone when in its in S/w upgrade mode. But it shows as LG modem
Device driver software shows my phone when connected as s/w upgrade mode as Unidentified Device - Unplugged
I installed the my phone driver from the Lg websites even the latest drivers 3.8
But still its not connected
I tried following guides to offline Flashing with lg mobile support tool to flash stock rom to my phone. but still my phone won't get detected
getting stuck on 15% when upgrading.
Adb also dosent detect my phone
all i need is to get anything to get my phone working even if i have to wipe everything.
i provided images to see what I'm getting when my phone is in s/w upgrade mode and connected to my pc
Sorry I'm for my bad english
Hey bro. Same deal happened with me. I got a bootloop with a root app. How i got it to work was through sw upgrade mode. You hold vol. up only, while plugging it in to your pc. Then you can do a recovery update, and it should work then. Message me if this doesn't work. Before this though, try a hard reset/wipe. That will wipe your phone, but so will the other solution i said. Hard wipe is vol -, power, home. Release after lg logo pops up.
Sent from my LG-P769 using XDA Free mobile app
Hello Yesterday i have upgraded my phone ROM.
First have unlocked the bootloader.
Next, followed this video to upgrade to Android 5.0 AOPS build:30-11-2014 by Artas.
It was great and useable while i did not installed a new CWM.. (CWM 6.0.4.5 Touch by Pollos).. after that, the phone is stucked at "LG" logo and while i charge random times reboot..
Earsed all with fastboot, and now the phone is not turn on while i charge or try to turn it on..
I have got this problem earlier with an other android version (sercurity error) and the S/W update was good.
Like this post:
mstation86 said:
Hello
is there any chance a kind person can help me with this dead stick?
a few information about this phone:
- as far as i was told, the phone died after an update
- when i plug the phone to the charger nothing appears on screen
- when i power the phone nothing happens
- when i volume up + power the phone nothing happen, same with volume down + power and volume up+down+power
i have installed the lg tools and using the imei downloaded a 600+MB package which should be the restore image of the phone but when the procedure starts to flash the image it gets stuck at 4% trying to connect to phone without any luck
if anyone has some ideas to give i would be very happy to try them!
Click to expand...
Click to collapse
Now.:
When i try do S/W upgrade with the "LG Mobile Support Tool", it stops at 4% and the phone disconnect itself from the PC.. the installer goes (without the phone plugged in) 4--->8% and if i turn again my phone to download mode, go to 15%.
At 15% again disconnect and the installer say "Error, try to unplug USB and remove battery and try again......"
I have tryed KDZ offline flashing but it is force quit when i click "Start"..
Tryed:
Official support tool - Say "You have already installed the latest version (V20H). If i try to "Upgrade errors fix", it stop at 15% as i said..
Fastboot - earse boot, system etc.. after that again upgrade, but stop at 15% and phone turn off.
LG Flash tool - these 90% exit with some error before i can start anything..
I hope you can help and understand my bad english:'D
Did you invoke "Download Mode"? If i remember, this requires switching the phone off, and attaching it to usb while keeping volume up or down pressed, and will show a special screen, if successful.
Download mode is even more basic than fastboot or adb, and the final line of defense, before throwing the phone away.
All LG tools require the LG usb drivers. These at least no longer recognize the phone with Artas' CM11, except for when in download mode. Then Windows should auto-install a virtual COM port. For ADB and Fastboot you need different drivers then, like those from the Google SDK. But with these the LG tools won't work, not even the sync suite.
Hello there. My girlfriend has a LG L9 P778g (which is actually a P768). She was charging her phone last night, left it there. After a couple of hours she picked it up and the phone was dead, black screen and wouldn't boot up (No LG LOGO, NOTHING, not even the backlight on the buttons).
I've flashed P768 ICS xloader and uboot with fastboot by Lelus. Then went into fastboot with option 1. Went into S/W Upgrade Mode, and my LG was recognized by the LG Support Tool (it shows up as Android: OMAP440 FastBoot USB Device in Device Manager and as LGP778g in LG Support Tool).
Process finished to 100% (around 90% screen went black). But nothing happens, i mean, the cellphone still won't turn on, just black screen. I SEE NO LG LOGO, NOTHING. I can only get into S/W Upgrade mode after fastbooting. (No fastboot image on screen neither).
Any hints?
Thanks!!
Regards, Alan
Bugotronic said:
Hello there. My girlfriend has a LG L9 P778g (which is actually a P768). She was charging her phone last night, left it there. After a couple of hours she picked it up and the phone was dead, black screen and wouldn't boot up (No LG LOGO, NOTHING, not even the backlight on the buttons).
I've flashed P768 ICS xloader and uboot with fastboot by Lelus. Then went into fastboot with option 1. Went into S/W Upgrade Mode, and my LG was recognized by the LG Support Tool (it shows up as Android: OMAP440 FastBoot USB Device in Device Manager and as LGP778g in LG Support Tool).
Process finished to 100% (around 90% screen went black). But nothing happens, i mean, the cellphone still won't turn on, just black screen. I SEE NO LG LOGO, NOTHING. I can only get into S/W Upgrade mode after fastbooting. (No fastboot image on screen neither).
Any hints?
Thanks!!
Regards, Alan
Click to expand...
Click to collapse
Hi Alan, it feels like a hardware issue or maybe a broken power button. Can't you try booting to fastboot over USB and then rebooting as normal?
Maybe you need to press the home button to switch the screen on after flashing. If the D/L mode screen was replaced by the LG stock recovery (service mode), immefiately flash the rom a second time. Then it should boot to the launcher.
This worked for me when nothing else did.
i was trying to install cm14 i started with unlocking the bootloader. I used the android one toolkit (made by xda developers) i knew it didnt supported my phone but still i used the tool. i pressed the unlock button ,device booted to fastboot mode, process was ongoing but it was taking a long time after 5-6 mins i unplugged the usb cable(my usb debugging was on) and then i replugged it and it showed unlocked successfully. but it didnt rebooted automatically when i pressed the power on button the screen flashed the karbonn logo and then it turned black. my device uses sc8830(though i am not sure i need to know how to find it). Now can i repair my phone? If yes How? Thanks
Ok first of all good day to everybody,
I bought a second hand LG V10 H960P, seems the previous owner flash a wrong ROM and now the phone work as follows:
Phone Turns On
Phone Shows LG Logo
Phone Enter Recovery Mode
Phone Does NOT Enter Download mode, after download mode screen appears immediately send to fastboot mode and Windows detects just as an Android Device with a yellow mark.
If I try to restore under recovery phone reboots and stay in LG Logo, my question is, can I do something or Should I return to the seller.
When I turn the phone and it stays on the LG Boot Logo Windows detects as LG AndroidNet USB Serial Port, the problem is that LGUP see it as an Unknown device and wont let me flash anything, I try to flash using LG Flash but I don't have the correct DLL for the V10.
Any advice will be much appreciate it.