Hi i own a 2004 996 turbo , and the PCM lcd was having problems, either the white screen or black screen used to come on and all the buttons used to work and other times the screen came back if i was lucky. So took it to a electrician and they cleaned the boards and wiring and put it back together again but now the screen works but keeps on rebooting/restarting all the time. The Porsche logo comes on and then restarts again same thing. Who knows what the issue is here? Do i have to re-install the software again from scratch or the PCM completely done. Or could it be the wiring is connected incorrectly.

Need someones help and knowledge, Note, i am also missing the Bose digital Amp in the boot, but i do not think that is the issue because the screen used to come one sometimes without it.