To program locally, you’ll need DFU utility. Here are the instructions for Mac. To enter the DFU mode please hold “M” button and without releasing it, click “R” button. Wait for the yellow blinks and then release “M”.
Here’s the link for system and v1.20 firmware binaries.
Commands to upload are:
dfu-util -d 2b04:d008 -a 0 -s 0x8020000 -D system-part1-0.6.4-p1.bin
dfu-util -d 2b04:d008 -a 0 -s 0x8060000 -D system-part2-0.6.4-p1.bin
dfu-util -d 2b04:d006 -a 0 -s 0x80A0000:leave -D garadget-120.bin
If this sound too technical, please PM me for the shipping arrangements.