BIOS upgrade file
Download BIOS upgrade file 'V919 AIR CH BIOS - 20151215' for Onda v919 Air Tablet from here or here (chinese version). Download previous version from here.
Archive content 'V919 AIR CH BIOS - 20151215' (4 MB):
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.