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:
http://developer.android.com/sdk/index.html

Before flashing this recovery image to your SHIELD, connect your SHIELD
via USB to the PC where you downloaded this recovery image.

Next, put your SHIELD 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:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD

Alternative method:
- Perform software shutdown on SHIELD by holding Power button for 10 seconds
- Connect USB OTG cable to SHIELD
- Start pressing power button for 3 seconds
- HDMI TV should be always connected to SHIELD

Fastboot menu navigation:
- Single tap on touch button for navigations between different menu.
- Hold down touch button for 4 second and release for selecting any menu

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. Get
DTB file name to use for flashing for your product(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
fastboot flash dtb <DTB file name>

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
- It will take you to '!!! READ THE FOLLOWING !!!' page.
- Two selectable options are available. 'Confirm' and 'Back to menu'.
- Select 'Confirm' to unlock the bootloader.
Unlock may take upto 2 hours for pro device.

Get <DTB file name>
- For base sku use dtb file "tegra210-foster-e-p2530-0930-e02-00.dtb"
- For pro sku use dtb file "tegra210-foster-e-hdd-p2530-0932-e02-00.dtb"