Allwinner A133 Firmware Install Online
: A prompt will appear asking to format the device; select "Yes" to begin the upgrade. SD Card Flashing (PhoenixCard) Create Bootable Card PhoenixCard
Insert the card into the powered-off tablet and turn it on. The tablet will automatically start flashing (often showing a progress bar on the screen). Once finished, remove the card and reboot. allwinner a133 firmware install