BDL4252E Forced Upgrade to Latest Software
Software update (update.zip)
File system=FAT32
Allocation unit size = 64 kilobyte
Download the latest updgrade_3576 into USB Drive.
the latest version is FB01.13
Download the file
Unzip the zip file
copy the updgrade_3576 folder onto the root directory of the USB Drive
Insert the USB drive to the screen.
Turn off the power (cut the power from the main / AC off)
Press and hold the POWER button
Turn on the power (restore the power from the main / AC on)
Keep holding the POWER button for 10 seconds
You'll enter the upgrade menu
After the upgrade is complete, the Android interface will appear.
Some USB drives do not get detected by the screen. If the screen fails to recognise the update file, try a different USB drive.
Verify the firmware has been updated
Follow this instruction