After messing around with my shield last night and not being able to get root access on cm12. I tried to reinstall one of the ota updates from a while back. Now I am bootlooping and when I try to boot into CWM it looks to be corrupted and doesn't load. I cant use ADB because usb debugging is no longer active. Does anybody have any suggestions to re-install recovery or somehow enable debugging or am I dead in the water here? Any help would be greatly appreciated
Is your bootloader unlocked?
Can you get into fastboot mode?
HW method:
Turn off the device
Press and hold "Back"+"Home"+"SHIELD" buttons till device boots
Click to expand...
Click to collapse
If you can get into fastboot mode and your bootloader is unlocked, you can use a command like "fastboot boot recovery.img" to have the device boot a recovery.img from your computer without flashing anything.
If you can get into fastboot mode, but your bootloader isn't unlocked you could try unlocking your bootloader, but this will wipe your data - so only try this if you don't have anything important saved. The command is "fastboot oem unlock".
~Troop
The bootloader is unlocked Whenever I try fastboot mode the device is not recognized because USB debugging is disabled .
Update: Fixed
Related
Hello, I have problem with my softbricked Nexus 5.
phone is full stock
bootloader is locked
USB debugging is not enabled
Android 6.0.1
all buttons are working
USB socket is fine
Factory reset from recovery mode is not working - still bootlooping
My purpose is to bring it to live, but I am stuck. Due to locked bootloader I have to use LG Flash Tool. Some time ago I used it with my other Nexus 5 and it was fine - worked excellent. Now I want to do it again with other phone but I am stuck on start: Can't enter download mode (volume up+usb cable). When I am trying to enter to download mode,charging battery icon appears and after few seconds my phone is being recognized as MTP USB device in device manager. I thought it is a problem with the phone, but tried with another working Nexus and there is no difference - it looks like problem with phone-pc connection to me. I tried few cables (original samsung and nokia) and two pc's - no difference. Tried all USB ports etc. Clean reinstall (with registry keys delete) doesn't help, updated version 4.2 neither. Do you have any ideas how to fix it?
Download mode? Never heard of that on the Nexus 5. There is a fastboot mode for flashing stock ROMs and to unlock the bootloader.
I recommend unlocking the bootloader and using NRT to flash a stock ROM.
audit13 said:
Download mode? Never heard of that on the Nexus 5. There is a fastboot mode for flashing stock ROMs and to unlock the bootloader.
I recommend unlocking the bootloader and using NRT to flash a stock ROM.
Click to expand...
Click to collapse
I have NRT but problem is that to unlock bootloader I have to enable USB debugging - I can't do it with bootlooping phone.
Bootloader can be unlocked without enabling debugging as you are not running adb commands, you need to run fastboot commands.
audit13 said:
Download mode? Never heard of that on the Nexus 5. There is a fastboot mode for flashing stock ROMs and to unlock the bootloader.
I recommend unlocking the bootloader and using NRT to flash a stock ROM.
Click to expand...
Click to collapse
audit13 said:
Bootloader can be unlocked without enabling debugging as you are not running adb commands, you need to run fastboot commands.
Click to expand...
Click to collapse
Thanks! Can I do it with NRT also?
Easiest way to unlock the bootloader on a windows machine is to do this:
make sure that the necessary fast boot drivers are installed;
boot phone into fast boot mode by holding down volume up, volume down, and power;
connect the phone to the computer;
type "fastboot oem unlock" without the quotation marks and press enter key.
Unlocking will wipe the phone.
Once unlocked, you can flash a stock ROM using fastboot commands.
audit13 said:
Easiest way to unlock the bootloader on a windows machine is to do this:
make sure that the necessary fast boot drivers are installed;
boot phone into fast boot mode by holding down volume up, volume down, and power;
connect the phone to the computer;
type "fastboot oem unlock" without the quotation marks and press enter key.
Unlocking will wipe the phone.
Once unlocked, you can flash a stock ROM using fastboot commands.
Click to expand...
Click to collapse
Ok I did it. Do I have to proceed "fastboot reboot" command? when I am doing it it reboots and still bootlooping. When I enter bootloader it is locked again
If the bootloader relocks itself when the phone is rebooted, the memory chip is damaged and will need a motherboard replacement.
Hello,
I have OP8 and its was rooted before, I did oem lock from fastboot then I got this message. " your device is corrupted and cannot be trusted"
i can't even flash stock rom. fastboot not accept command
OmanGhost said:
Hello,
I have OP8 and its was rooted before, I did oem lock from fastboot then I got this message. " your device is corrupted and cannot be trusted"
i can't even flash stock rom. fastboot not accept command
Click to expand...
Click to collapse
Sounds like the bootloader was modified, which breaks the digital signature.
Try unlocking the bootloader again and reboot. Go into developers options and turn usb debugging on. Then connect a cable between your computer and the phone. An RSA signature key should be presented. Check the box "always accept from this computer". Then try rebooting into fastboot and flashing stock.
Not sure of this will help but that's the best advice I can offer.
Cheers,
B.D.
I recently deleted my stock rom and twrp off of my rooted asus 4max. I cant get adb to detect my device cause I'm stuck on the bootloader and fastboot options and cant access developer options to revoke usb debugging authorizations please if anyone can help.
boot into bootloader, flash recovery, ex. fastboot flash recovery recovery.img, after that boot into recovery and flash update package for your phone.
Hi
I have problem with fastboot mode.
My pc dont recognize anything in vivonex A fastboot mode. Anything not a single sound of connected disconnected device. And fastboot shows wating for device. Adb also dont show device in fastboot mode and recovery mode.
Drivers is ok and installed and adb recognize phone when it's on.
I unlocked bootloader in developer option i checked that fastboot mode with check and uncheck of "unlock bootloader". Same result and nothing showed in pc.
I wanna root and i tested kingoroot and that couldnt do it.
Plz help me.
Is Anyone here who could see fastboot device without any problem??
I have the nex chinese version
Hello, I have a vanilla Pixel 2 which corrupted itself and will not boot. It boots to recovery mode, but Bootloader is locked. I have not done a factory reset, and am attempting to recover the files. Fastboot mode works but will not allow temporary boot or unlocking of bootloader. I can access adb but only in sideload mode. OTA images successfully sideload but it still will not boot... After hours of scouring google I'm stumped. Any thoughts or suggestions welcome.
Hint: Add Pixel 2 to this thread's title thus mainly owners of such a phone get addressed.
jm001 said:
Hello, I have a vanilla Pixel 2 which corrupted itself and will not boot. It boots to recovery mode, but Bootloader is locked. I have not done a factory reset, and am attempting to recover the files. Fastboot mode works but will not allow temporary boot or unlocking of bootloader. I can access adb but only in sideload mode. OTA images successfully sideload but it still will not boot... After hours of scouring google I'm stumped. Any thoughts or suggestions welcome.
Click to expand...
Click to collapse
I see that u want to keep your files but sorry to say this but your gonna have to do a factory reset because their is no other way to fix this
To do this boot into recovery mode and perform a factory reset
If u can't boot into recovery mode u probably have to unlock bootloader than install twrp
But that's probably only gonna work if u enabled oem unlock and enabled usb debugger before your device got bricked
Because if u try to unlock the bootloader with oem unlock and usb debugger disenable your gonna receive error when trying to unlock bootloader
Try to start in recovery mode. Otherwise only restore is the option.
You can start mobile in fastboot mode. You can back up mobile.
adb backup -all
jm001 said:
Hello, I have a vanilla Pixel 2 which corrupted itself and will not boot. It boots to recovery mode, but Bootloader is locked. I have not done a factory reset, and am attempting to recover the files. Fastboot mode works but will not allow temporary boot or unlocking of bootloader. I can access adb but only in sideload mode. OTA images successfully sideload but it still will not boot... After hours of scouring google I'm stumped. Any thoughts or suggestions welcome.
Click to expand...
Click to collapse
On Android-side bootloader initializes ADB and mounts partitions. Hence check whether phone is accessible via ADB:
Code:
adb reboot
adb devices
If it is, and partitions got mounted, then you can fetch the user-data you are interested in by means of adb pull method.