Flashing from a Windows Computer using RK Batch Tool

We need to perform these steps:

• Install the RockChip USB device drivers
• Install the RockChip Batch Tool program
• Download and unpack the TMF Custom ROM Firmware
• Connect your Hudl to the computer in flash mode
• Flash the TMF Custom ROM firmware
• Perform the post install steps

Step 1: Install the RockChip USB Device Drivers

1. Download the RockChip Driver Assistant from https://androidmtk.com/download-rockchip-driver-assistant Working version: v4.4 (v4.8 did not work for me)
2. Extract and run the assistant, click 'install' button to install the drivers, accepting the dialogs as needed
3. For Windows 8.1 and higher you need to add a registry key to cater for the RockChip bootloader in the HUdl advertising itself as USB v2.1 compatible, btu not following the spec correctly. copy this text into a file with a .reg extension and double click it to apply the chnage to the registry:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\usbflags\2207300B0100]
"SkipBOSDescriptorQuery"=hex:01,00,00,00

4. Connect your Hudl to your computer using a USB Cable and put it into bootloader/flashing mode: Option A: With the device powered off and not connected to the computer, press and hold the volume+ button and keep holding it while connecting the USB cable to the computer. Hold for another 5-10 seconds. Option B with the device in any state and connected to the computer by USB then hold the volume+ button and press the reste button through the small hole on the back of the case (with a SIM removal tool or paperclip).
5. If you are connected then you will see .... in device manager