Download latest BIOS upgrade file for Onda V820w Dual Boot Tablet from here, here or here. Download Win8.1 x86 Drivers for Onda V820W from here. Download latest Android KitKat 4.4.4 stock firmware for Onda V820w tablet from here.
Archive content V820w%20DualOS_BIOS (3,23 MB):
- FlsHook.exe
- Update.exe
- D86JFBNR02.fd
- FWUpdLcl.exe