Hi guys,
I'll try and keep it short
Situation: Got a FaceU replica/bootleg from a GB in China forums, leader didn't use the latest firmware so I want to flash it to the latest one. the press q and plug in method didn't work. I would like to flash the firmware via ISP with an Arduino that I have in hand.
Question: How do I do it? Do I have to burn in a USB bootloader first then only flash ps2avrU firmware? There's not much topics on this after searching and thus, I'm asking this question to those who know.
Also, have a good weekend ahead guys!