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).
Well, I am quite certain i have bricked my phone. I was trying to flash CM9 from openrecovery and everything was normal. When the phone rebooted out of OR it stayed on the M logo for quite some time. I figured usually it takes awhile so I let it go. Needless to say, it didn't boot up or do anything, it was stuck. I pulled the battery and tried to put it into recovery mode. at first it looked as if it was going to go into recovery, had the progress bar at the bottom, but then it quickly went blank and the phone rebooted. I tried again. This time it gave me the triangle with the exclamation mark. I tried accessing the recovery option to hard reset and wipe the phone both with and without the SD card by pressing Volume up + Gallery key down + camera shutter. It did nothing. I have tried to access the bootloader, but to my horror, the phone will not go into bootloader mode for me to flash with RSD! No matter what button combination I try the phone just stays on the M logo, it will not go into bootloader mode. This is both with and without the SD card inserted. Battery is/should be 90-100%.
Any suggestions on what I can do at this point? Or is all hope lost? It is a Motorola XT720 (not Motoroi) Singapore model.
I forgot to also mention, when the M logo is on screen, pressing the gallery button turns on and off the flashlight (red light)
Hello,
I started a factory reset in the menu of crombikk. The tablet rebooted an stayed in a screen with a green android man and a progress bar. I think it looks like the update recovery. I can restart it by pushing the power button for about 10 seconds, but it boots after the asus start screen into this screen. The tablet is shown on my computer when i connect it. When i try to restart it via fastboot it says 'waiting for device'.
What can i do to come back to recovery or into the rom? Are ther any fastboot commands to cancel the factory reset?
Pleas help me!
[email protected]
[email protected] said:
Hello,
I started a factory reset in the menu of crombikk. The tablet rebooted an stayed in a screen with a green android man and a progress bar. I think it looks like the update recovery. I can restart it by pushing the power button for about 10 seconds, but it boots after the asus start screen into this screen. The tablet is shown on my computer when i connect it. When i try to restart it via fastboot it says 'waiting for device'.
What can i do to come back to recovery or into the rom? Are ther any fastboot commands to cancel the factory reset?
Pleas help me!
[email protected]
Click to expand...
Click to collapse
First guess (and you shouldn't make me guess): Your recovery is some version of CWM.
Second guess: You did a facotry reset from Settings which is a no-no once you have a custom recovery installed (the same is true for Wipe Data from the bootloader btw: no-no-no)
The picture you see is CWM trying to finish the data wipe and you keep interrupting it. Connect the tablet to power and let if finish. It will take hours! But CWM usually gets through it. Other than TWRP. That recovery doesn't like it at all if you wipe from Settings or BL.
For future reference: Explore the options in your recovery. You can do any wipe desired from there safely. That's what it's for.
Thank you so much.
The tablet works. And I thought already my idleness destroyed my tablet.
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?
Hi,
Yesterday I upgraded the phone to last aospa version (no other modification such as kernel, etc.). Today, I installed Android Auto and also ungranted permissions to some apps to not to access to my location. But then, after 1 hour, i think, the phone got into a bootloop. I can't reboot into recovery as as soon as I get into the screen to choose between "Start"/"Recovery"/"Power off"/... it reboots again. It reboots so fast I don´t have time to choose fastboot or recovery, even sometimes I managed to change to "restart bootloader" but even if I press the power button to select this option, the phone reboots. Also, If I connect the phone to the grid, the phone doesn´t stop rebooting.
So, I can´t keep the phone turn on enough to go to recovery and reset or select the fastboot to reset it from the computer.
I´ve also posted this in the aospa forum, as it could be a software bug.
Help please.
Thanks.
It looks like dead power button. There are few threads abut it:
https://forum.xda-developers.com/google-nexus-5/help/power-button-finally-died-t3664125
https://forum.xda-developers.com/google-nexus-5/help/help-power-button-broken-stuck-t2761471
and more if you search.