blaupunkt bno 881 bricked.

Hello guys I need some help on this car radio. Got it for spares or repair. i would like to rapair it. Ok first of all, guy tried to get a code.. and desoldered 95320 flash ( don’t know why.) then he soldered it backwards.. i have replaced it with a new one, cos it was completely ruined, placed it on correct side, flashed with dump from internet 🙂 but still nothing, no life at all. Any ideas?