I found a web page with FPGAUpgrade.rar plugin but I can't download it to check if it works. I have the same problem as you. I cannot create an account. Can you download this plugin and post it on the forum? Maybe it's worth checking out. You mean the RS232 chip in the form of a PCB that is soldered to the motherboard? Probably not a problem, it is not a problem to replace if it is only this board. The question is whether it does not need to be programmed? If so, maybe some file from the clone can match? What do you think about it?