I bought AIO-3399J board few days ago, then I tried to download firmware myself.
Using Android Tool (v2.38), I clicked ‘EraseFlash’ button in Upgrade Firmware tab but then it was failed.
When I turned off and on the board, it was in MASKROM mode, after then I can’t do anything (eg, ‘EraseFlash’ or ‘Upgrade’ any firmware).
Is my board bricked? Is there any way to recover from this mode?
Fortunately, now I can download the firmware on my AIO-3399J board.
What I did that, I installed Linux host and downloaded the firmware using upgrade_tool instead of Android Tool, like below.