Adb fastboot shield recovery image flashing instructions (RETURN TO STOCK)
This is Nvidia's own instruictions which I just followed works great! For new members please be aware that you may have to edit a command given in the instructions below which I will point out (depends on what OTA you have downloaded) for example
fastboot flash dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb
Highlighted in red is the name you may have to change within the extracted ota, Just look in the extracted file and locate the .dtb
now just copy and paste the name of your .dtb
and change the fastboot command --> example
--> fastboot flash dtb tegra144-tn8-p1761-1270-a04-xda-battery.dtb
Please Read Carefully!
Follow here to get OTA
What you must have
You need a unlocked boot loader instructions further below.
Also in cmw recovery, please wipe all partions! and reboot in to fastboot mode whilst still in recovery!
SHIELD RECOVERY IMAGE FLASHING INSTRUCTIONS
To follow the instructions in this guide, you will need adb and fastboot.
These tools are provided as part of the Android SDK:
or you can just download this little .exe Minimal ADB and Fastboot this is what I used.please extract your recovery.zip into where you have installed Minimal ADB and Fastboot example c:\program files x86\Minimal ADB and fastboot.
Before flashing this recovery image to your SHIELD, connect your SHIELD
via USB to the PC where you downloaded this recovery image example same as above c:\program files x86\Minimal ADB and fastboot.
Next, put your SHIELD into fastboot mode using one of the following methods:
SW method 1:
- Boot to android home screen
- Connect the device to linux/windows system
- Open terminal (on linux); command prompt (on windows).
- Type "adb reboot bootloader" in terminal/command prompt
HW method 2 :
- Turn off the device
- Press and hold "Back"+"Home"+"SHIELD" buttons till device boots
To flash this recovery image to your SHIELD, run the following commands from
the directory where you extracted the recovery image package. If this is the
first time you have done this procedure, you must unlock the bootloader (see
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot flash staging blob
fastboot flash dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb <---------------------------------------------------------------------
Now restart your device
now wait a min or two and you have just returned to stock!
Unlocking the Bootloader
Your SHIELD may have shipped with a locked bootloader. To update the device,
you must unlock the bootloader using the following:
- fastboot oem unlock
- Press the Home button on the device to highlight "Unlock".
- Press the Shield button to confirm the unlock. Your device's bootloader is now unlocked.