While searching for info about reserve engineering this device I found some useful information.

This camera uses the iCatch V39 processor.

If you remove the battery, press and hold the shutter button and plug the USB cable it will enter in debug mode. On Linux you will see:

[ 3795.696924] usb 1-1: new high-speed USB device number 5 using xhci_hcd
[ 3795.820785] usb 1-1: config 1 has an invalid interface number: 5 but max is 2
[ 3795.820790] usb 1-1: config 1 has no interface number 2
[ 3795.821237] usb 1-1: New USB device found, idVendor=2aad, idProduct=6370, bcdDevice= 0.00
[ 3795.821240] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3795.821242] usb 1-1: Product: General USB Device
[ 3795.821243] usb 1-1: Manufacturer: General Ltd