why flash ic?
cable gives him 5v instead of 3,6(battery voltage) I say is CCONT problem
it's true ,flash ic can be the reason too but also ram and cobba can cause restarting(cobba) or hang up(ram)
also check pcb version
an old pcb (3310,3330 keyboard only,not 3410) doesn'n work well with
SW 6.33 try 5.13 instead
br. |