I just bought an LG V905 tablet used but there is a password on it.
I can't get it to do a factory reset.
I tried holding the volume button ( both up and down ) with the reset button.
when i use the up volume button i get a screen that says "entering lg mdp mode"
and "DO NOT POWER DOWN" downloading now..."
i left it over night like that and it still was at the same screen in the morning.
when i try it with the down volumne it get
"Starting fastboot usb download protocol" anf the LG logo and it sits there.
can anybody tell me how to reset this tablet ?
Thanks In Advance
JP
I'm in the same boat.
I had a force close happen while installing a 3d wallpaper apk that rendered my touch screen insensitive to touch. This virtually bricks my device as I cannot unlock the screen during start up. Everything else works as I can hear notifications and watch it connect to my wifi network.
I've tried flashing stock images for the lg-909 (system.img, bootloader.bin, flashboot.img) and this did not work on my LG-905. It would get stuck in a continuous boot loop in the t-mobile animations.
My LG-905 is a Rogers device so the stock images are now obviously different than the T-Mobile's.
I need fresh images for the LG-905. If anyone has rooted their device using the instructions for the LG-909 they will have one of these back-up images available. I would ask someone help me out by making this available to me. Mine has been corrupted and is unusable.
Other than this, perhaps someone can help me restore my screen sensitivity by some other means as I have access to the file system using ADB, APX and sometimes fastboot (when it works).
Hello all,
I have been searching all day trying to find an answer to this issue but so far have only really found information on the ZTE blade...
Today my ZTE concord (v768) randomly turned off. When i tried to boot it back up, i got stuck at the green android boot screen. I tried taking the battery out and tried to boot with the volume up and power keys, or the volume down and power keys, to try to enter recovery mode with no avail.
I have also tried the guide found here- http://forum.xda-developers.com/showthread.php?t=2426426 and the program wouldnt recognize the device when it was plugged into the computer (stuck at the green android logo).
I also tried installing adb but could not get adb to locate the device.
when i plug the phone in to charge it shows an empty battery container with a circle inscribed in it composed of 6 lines (very similar to this logo, http://www.maclife.com/files/u220903/mac_boot_screen_so_fast_620px.png, but with only 6 lines instead of 12.
Is there anything left to try here? Or is this a hardware issue that no amount of fiddling with software can correct?
Thank you for all of your help, and if you need any more info please let me know!
Hey guys,
I've seen some solutions for my kind of problem but none of them seems to start at my frustrating point.
After I rooted my HTC One S I was able to reboot my device and everything went fine.
The problem occured just when my battery was depleted and the phone got turned off I had no chance to restart it.
The LED did not show me it was charging and it did nothing, when I pressed the power button or the volume/power combination.
So i connected it to my laptop and tried to check my devices through adb.
It says my device is in recovery mode.
Using the fastboot reboot command I was always able to reboot my phone and everything was just fine.
I thought it was alright, as I just had to pay attention not to use up my battery, when not at home.
Today my phone just decided to turn off. It refuses to boot up even with the fastboot help from my PC.
It just says: < waiting for device >
certainly I'm unable to post a link to a screenshot I made of my cmd.
Thank you for all kind of help
Hello, I just unlocked bootloader, flashed custom recovery (clockwork 6.0.4.8), and gained root on my HTC One S. I then attempted to install a custom ROM, (cyanogen 12.1).
After installing and telling Clockwordmod to reboot, I believe I am in a boot loop. The white HTC screen pops up and then goes to black and stays there. When I plug my phone into my computer, I get the connection and chime, and a new device appears in Device Manager called "HTC MTP Device." When I am in fastboot mode, my phone is shown as "Android ADB Interface" in device manager, so this is different. This leads me to believe that my phone is not dead or off, it is on with a blank screen. I do not believe my computer will recognize a device that is not powered on.
I have HTC Sync Manager and I have the option for it to automatically pop up when a device is connected. It pops up, but with an error saying HTC Sync Manager could not connect to your phone.
I am able to hard-reset the phone, by holding down the Power button for several seconds. However, this just repeats the process (White HTC logo screen, then black screen). I am not able to enter bootloader or recovery by holding down Volume and Power. I have tried Volume Up + Power, Volume Down + Power, and Volume Up + Volume Down + Power.
Also adb no longer recognizes my device, so I can not interact with the phone that way either.
Currently, my only idea is to allow my phone to die so I can try booting it into recovery from power off. But if there are any other ideas that would be great.
Right before I rebooted, after installing the ROMs, I got a message saying something like "Root possibly lost, do you want to fix root." I said yes, could this be part of the issue?
I am on Windows 10.
t1j said:
Hello, I just unlocked bootloader, flashed custom recovery (clockwork 6.0.4.8), and gained root on my HTC One S. I then attempted to install a custom ROM, (cyanogen 12.1).
After installing and telling Clockwordmod to reboot, I believe I am in a boot loop. The white HTC screen pops up and then goes to black and stays there. When I plug my phone into my computer, I get the connection and chime, and a new device appears in Device Manager called "HTC MTP Device." When I am in fastboot mode, my phone is shown as "Android ADB Interface" in device manager, so this is different. This leads me to believe that my phone is not dead or off, it is on with a blank screen. I do not believe my computer will recognize a device that is not powered on.
I have HTC Sync Manager and I have the option for it to automatically pop up when a device is connected. It pops up, but with an error saying HTC Sync Manager could not connect to your phone.
I am able to hard-reset the phone, by holding down the Power button for several seconds. However, this just repeats the process (White HTC logo screen, then black screen). I am not able to enter bootloader or recovery by holding down Volume and Power. I have tried Volume Up + Power, Volume Down + Power, and Volume Up + Volume Down + Power.
Also adb no longer recognizes my device, so I can not interact with the phone that way either.
Currently, my only idea is to allow my phone to die so I can try booting it into recovery from power off. But if there are any other ideas that would be great.
Right before I rebooted, after installing the ROMs, I got a message saying something like "Root possibly lost, do you want to fix root." I said yes, could this be part of the issue?
I am on Windows 10.
Click to expand...
Click to collapse
Just in case anyone stumbles on this. You can boot into the bootloader by Holding down the Power Button for several seconds, the soft buttons will blink, indicated ensuing reboot, when they stop blinking, hold Volume Down until you get to the bootloader menu. The phone does not need to be powered off for this. From there, adb/fastboot will recognize your phone, and you can factory reset if needed.
However, I figured out my problem. On older HTC models, including the HTC One S, you have to manually flash the boot.img file that is included in the zip for your ROM.
But now I've made it to the cyanogenmod boot screen and am stuck there. sigh. i've been at this literally all day.
In the end, I just flash a different rom, specially Candy5 as found here: http://forum.xda-developers.com/htc-one-s/development/rom-t2964931 and it worked.
It's possible I accidentally flashed a rom that was incompatible with my device, not sure.
EDIT: I also switched from CWM to TWRP. Not sure if that helped.
t1j said:
Just in case anyone stumbles on this. You can boot into the bootloader by Holding down the Power Button for several seconds, the soft buttons will blink, indicated ensuing reboot, when they stop blinking, hold Volume Down until you get to the bootloader menu. The phone does not need to be powered off for this. From there, adb/fastboot will recognize your phone, and you can factory reset if needed.
However, I figured out my problem. On older HTC models, including the HTC One S, you have to manually flash the boot.img file that is included in the zip for your ROM.
But now I've made it to the cyanogenmod boot screen and am stuck there. sigh. i've been at this literally all day.
Click to expand...
Click to collapse
I have broken volume down button, what can i do? face the same problem
What does it mean by manually flash boot.img? After flashing a custom rom, do not reboot first but flash the boot.img via twrp which can be found in zip for the rom?
I'm stuck on the screen where it shows up that boot loader is unlocked etc etc, visit the link and press power button to pause, which does nothing.
I can get it to reboot after holding down volume+power key for 10 sec, but it reboots it to the same screen, Windows doesn't detect the device via USB and I'm lost and haven't found any solutions yet, help is appreciated.
Edit: nvm, got it to TWRP again, but I don't get it to root properly after flashing magisk, rebooting only gets me back to trwp every time...
Using stock in the meantime, scared af.