Some time ago a friend had an overheating issue with her Nvidia Shield tablet. The battery (original) was bulging but it still held a charge. I was, at first, able to enter the recovery menus but when I initiated the clearing of the cache (partition?) the process started but only ran for about 5-10 seconds before the device rebooted and went to a "no command" error. Since then I replaced the battery but still cannot get past the "no command". I am able to boot, through down volume + power, to the menu from which you can select reboot options, "continue" and recovery. When I try to initiate the recovery options, by selecting recovery options and then power, the device simply reboots and, yes, goes to "no command". Am I doing something wrong and/or any suggestions as to how I may recover the OS with minimal data loss would be most appreciated.
I also found that when I tried to connect it to my Windows 7 PC the device drivers fail to load so no third party recovery software appears to be of any use. MTB drivers failed to install?
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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.
I manage to solve it :good:
In summary:
What lead me to Error Mode:
I wanted to rollback to marshmallow, because i had updated to dual sim nougat (long story) so it was problematic (missing apps ecc.), i tried to install the rollback with "dd if of" before installing the marshmallow firmware with dload but something has gone wrong and the "recovery" and "recovery2" partitions were corrupted and "cust" and "version" as well but because of the update (no update in settings, NDR90M test-keys).
I rebooted in fastboot to patch things up, but the bootloader was locked because to rollback i reinstalled the single sim "oeminfo" partition, so i unlocked the bootloader, but the phone couldn't be factory resetted since it hadn't a working recovery, so the phone apparently refused to boot any other mode than "Error Mode" with the following message:
Error!
Func NO: 11(recovery image)
Error NO: 2(load failed!)
and it wasn't detected by any pc.
How it was solved:
After some googling i found out that let my phone discharge + a button combination could lead to booting into fastboot (https://forum.xda-developers.com/honor-9/help/help-hardbrick-func-11-recovery-image-t3656979), so i left my phone booted in Error Mode.
When it turned off i plugged it into the pc and left it charge a bit, and suprise, after some minute it booted up automatically in system (idk why), but it shutdown on the lockscreen, so i let it fully discharge again in Error Mode and i this time i plugged it into an outlet, and it booted successfully, but to boot into system i had to discharge it completely everytime.
I tried "adb reboot bootloader", "adb reboot recovery" and i tried to factory reset from settings but no luck.
Then i turned it off and i started to spam the **** out of my phone by trying every combination possible, and finally one seems to have lead me to fastboot after a lot of tries: i let it charge a bit while booted into the system (like 8%), then i turned it off, and i tried "Power + Vol+", "Plugged/Unplugged", "Power + Vol-" in random order and multiple times, and it worked, from what i remember it was: Turn off->Power + Vol+ (Error Mode) -> Plugged -> Power + Vol- (Fastboot)" but i'm not sure.
If the bootloader is unlocked and frp disabled it's a matter of hours and some "fastboot flash" before it will be fully functioning again, else i suggest to look in that topic and use dc unlocker as last resort.
let the phone drain the whole battery and then keep pressing volume down and connect it to pc,dont release the volume down till it opens to fastboot mode,if nothing happens in one try give it another shot,keep trying,it will work.thank you
Hey guys - I hope you're doing well.
I recently got an HTC U12+, but wanted to try using a custom ROM due to all of the bloatware . Unfortunately I think I've ended up bricking my device. Here are some things I've since tried:
- Restoring to the backup I made beforehand in TWRP - restore works without any errors, but then just hangs at the boot screen
- Method 1 from this thread (https://forum.xda-developers.com/u12-plus/how-to/collection-htcu-u12-ruu-firmware-t3794664) - TWRP always says the zip files are corrupted for some reason
- Method 3 from that same thread - this actually worked before, but I tried installing a custom ROM again, somehow messed up again, and now this method no longer works as it just hangs at the "HTC" boot screen for eternity
- Both methods in this thread (https://www.theandroidsoul.com/how-to-install-htc-firmware-ruu-and-zip/) - the first one leads to a "failed remote 99 ru unknown fail terrible mishap" error, and for some reason my PC doesn't see my phone when I try the second despite being able to see it in file manager
- Probably many other methods that I've now forgotten
I know this is a whole lot of information, but I'm in desperate need of some help. I typically like to troubleshoot things myself, but I've been trying to fix this for quite some time now and could definitely use another set of (much more experienced) eyes. I greatly appreciate any help you guys can provide.
Thanks.
Flash RUU with SD card method
Download RUU from here(important:check your CID): https://docs.google.com/spreadsheets/d/1wIRrVQawd5rD-t9VKPQ-SdRK20RcJVZhwD7lhmPIK8w/edit#gid=0
1. rename RUU to 2Q55IMG.zip
2. copy zip in the root of your sd card. - external card / not internal - it will not work
3. reboot to download mode,
4. your device will pick up the zip file and flash it.
5.follow on screen instructions and enjoy your RUU(this method erase all your data)
I'm having an issue with my u12+ where it just continually reboots to a message saying "The boot loader is unlocked and the software integrity cannot be guaranteed. Any data stored on the device maybe available to attackers, do not store sensitive data on this device" and then it shows the white HTC logo that says Powered by Android down the bottom of the screen, it stays like that for about 5 minutes and then reboots and does the same thing over again.
Holding the power down button does nothing, it will not turn off the phone. Holding power and volume down does nothing either. The phone just does this every 6 minutes and reboots and cycle and that's it.
I've tried putting the file 2Q55IMG_IMAGINE_DUGL_O80_SENSE10GP_hTC_Asia_TW_1.53.709.1_Radio_sdm845-000201b-1807311356_release_531499_signed_2_4.zip (renamed to 2Q55IMG.zip) on the root of a 8gb Fat32 formatted SD card, but I just can't get into recovery or download mode.
I've tried holding down all 3 side buttons for minutes, or just the power button, or combination of buttons, they all do nothing to the phone. (it's as tho they are disabled, but sometimes holding a combination of the 3 will make the phone vibrate a little bit, but in no particular time or order)
When the phone is in either state (locked bootloader message or white HTC logo) my Windows 10 PC sees the phone plugged in as a "USB Input Device", not an Android Phone or Android Device. So using ADB or Fastboot commands do not work to it. I've tried to force the driver to the HTC driver but that does not work.
I also tried using the RUU_IMAGINE_UHL_O80_SENSE10GP_NA_Gen_Unlock_1.30.617.2.exe file, but once again it doesn't detect my phone.
Any help would be kindly appreciated.
Cheers!
EDIT: So I was finally able to get into download mode by waiting until the phone done its 6 minute reboot and then holding power down until it vibrated once, then held volume up until it vibrated again, then let go of the power button, I was then able to choose recovery, download etc.
So I managed to get the file 2Q55IMG.zip to install, it said it installed 100% okay. The phone rebooted and now I'm stuck again just at the white HTC logo and Power by Android down the bottom of the screen.
This time the phone is not automatically rebooting itself and no key combinations will make it reboot. I've tried holding them all in certain combinations for periods of time, the phone will not reboot or turn off.
EDIT 2: So maybe I didn't wait long enough after installing the 2Q55IMG.zip file, I finally got the phone to reboot and now I've got a working phone again. happy days :laugh:
whowhatwhen said:
I'm having an issue with my u12+ where it just continually reboots to a message saying "The boot loader is unlocked and the software integrity cannot be guaranteed. Any data stored on the device maybe available to attackers, do not store sensitive data on this device" and then it shows the white HTC logo that says Powered by Android down the bottom of the screen, it stays like that for about 5 minutes and then reboots and does the same thing over again.
Holding the power down button does nothing, it will not turn off the phone. Holding power and volume down does nothing either. The phone just does this every 6 minutes and reboots and cycle and that's it.
I've tried putting the file 2Q55IMG_IMAGINE_DUGL_O80_SENSE10GP_hTC_Asia_TW_1.53.709.1_Radio_sdm845-000201b-1807311356_release_531499_signed_2_4.zip (renamed to 2Q55IMG.zip) on the root of a 8gb Fat32 formatted SD card, but I just can't get into recovery or download mode.
I've tried holding down all 3 side buttons for minutes, or just the power button, or combination of buttons, they all do nothing to the phone. (it's as tho they are disabled, but sometimes holding a combination of the 3 will make the phone vibrate a little bit, but in no particular time or order)
When the phone is in either state (locked bootloader message or white HTC logo) my Windows 10 PC sees the phone plugged in as a "USB Input Device", not an Android Phone or Android Device. So using ADB or Fastboot commands do not work to it. I've tried to force the driver to the HTC driver but that does not work.
I also tried using the RUU_IMAGINE_UHL_O80_SENSE10GP_NA_Gen_Unlock_1.30.617.2.exe file, but once again it doesn't detect my phone.
Any help would be kindly appreciated.
Cheers!
Click to expand...
Click to collapse
with the phone off, turn it on,when you feel first vibration
quick release power key and keep push volume down.
Smartphone should boot in bootloader mode.
can you get into this mode with this guide?
fabrizio b92 said:
with the phone off, turn it on,when you feel first vibration
quick release power key and keep push volume down.
Smartphone should boot in bootloader mode.
can you get into this mode with this guide?
Click to expand...
Click to collapse
Cheer mates, issue sorted. I just updated my comment in my post.
Not sure if I'm game enough again now to try and put LeeDrOiD and Magisk on it.
Hey guys, I'm stuck and need assistance. I've had my dell venue 8 7840 for 5/6 years now and never really had any issues until recently.
When I switch my device on it goes straight into Recovery mode. When I press the power button as instructed by the device it then displays an android bot laying on the ground with a red exclamation mark with "no command" written underneath it (by the way the warning message on the recovery screen says:"Your device is unable to start because the boot image has failed to verify. You may attempt to recover the device.") After some minutes it loops/resets back to the recovery mode screen prompting me to do the same thing again (press power button).
I've gone into the system bios? by pressing and holding the volume up key and power button at the same time and I've wiped the cache partition and data/factory reset options many times but it still keeps showing me the recovery screen looping. All I want is to somehow restore my device. I know my data is gone as I've been resetting to factory which is fine. I just want it working again but all I can see via searches on XDA are guides on how to root the device which I can't do as the device isn't even booting up. Someone please help. I'm a complete novice at everything including terminology but I'm guessing my device's boot sequence has been corrupted so it just keeps looping and I'll need to somehow copy a working boot sequence to replace the damaged one on my device?
What happens when you in Recovery Menu apply "reboot system now"?
It goes back to the screen with the recovery message after trying to reboot