AndyThilo I want to downgrade my ASIAir Plus back to V2.0. Where can I find the firmware? I have the app apk.
The firmware that matches the tablet app version is a payload that lives in the tablet app itself.
Check this forum on how to reset the firmware of the third and fourth generation ASIAIR "plus" to the factory default.
After reseting your firmware, when you next connect the app to the device, the ASIAIR app will ask you to update the factory firmware to the firmware that matches the app.
Chen