UBook X CW1535 Digitizer / HiPen H6 Firmware needed

I performed this firmware update on my UBook X.

I assumed that it was an update for the HiPen H6 and not for the digitizer in the tablet. There was no corresponding warning.

As a result, the touchscreen and pen input on my UBook X no longer work. To fix the error, I now need the correct cfg file and the firmware for the GXTP7386 digitizer.

Unfortunately it is hard to find. Can someone help me here and please make this available. It is the UBook X Type CW1535.

Many Thanks.