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The method of firmware installation for VIA 8850 using TF card

(1) Download the firmware file.
(2) Unzip the RAR file to a folder.
(3) Open the zipped folder and copy all content in it to an empty SD or Micro SD card.
(4) Turn off your device and then insert the SD or Micro SD card into it.
(5) The upgrade process will get started automatically when you turn on your device.
(6) Upgrade finished! Remove the SD or Micro SD card from your device.
(7) The device would automatically restart again.

video of burning procedures of the VIA8850



Download Tablet PC 7" VIA8850 firmware

7" W70 (512MB+4GB) android 4.0 No.20120508download zt280-c71 firmware