SHIELD TABLET 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: http://developer.android.com/sdk/index.html Before flashing this recovery image to your SHIELD TABLET, connect your SHIELD TABLET via USB to the PC where you downloaded this recovery image. Next, put your SHIELD TABLET into fastboot mode using one of the following methods: SW method: - 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: - Turn off the device - Press "Volume Down" -> "Power", hold "Volume Down" and leave Power buttons till device boots To flash this recovery image to your SHIELD TABLET, 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 below): fastboot flash recovery recovery.img fastboot flash boot boot.img fastboot flash system system.img fastboot flash userdata userdata.img fastboot flash staging blob Unlocking the Bootloader Your SHIELD TABLET may have shipped with a locked bootloader. To update the device, you must unlock the bootloader using the following: - fastboot oem unlock - Press the "Volume Down" button to select "Unlock bootloader" option on device - Press the "Power" button to confirm the unlock. Your device's bootloader is now unlocked.