The PCB finish is ENIG.
GBxCart firmware updates
For GBxCart v1.4, it keeps all existing functions as there is lots of firmware space available. You will need firmware R39+L8 or higher (use FlashGBX to update).
For GBxCart v1.3 as we have reached the maximum firmware size, the firmware update will disable all GBA functionality. You would have to use FlashGBX to update the firmware back to how it was if you would like GBA functionality again. Please contact us to receive the firmware.
Games that don’t work
Judgement Silversword – requires 2Mbit (256KByte) of SRAM according to an emulator
Video of a quick prototype below