Fiat bosch teyp - i am getting "code error" help me pls

[elektrotman]

fiat bosch
My car's stereo broke and I bought it from my friend, but when I put it in my own car, I get a code error. the code writing screen does not come and I do not know the code
sn no : 815CM0342B6278577

[RegWorts]

fiat bosch
My car's stereo broke and I bought it from my friend, but when I put it in my own car, I get a code error. the code writing screen does not come and I do not know the code
sn no : 815CM0342B6278577

Try leaving the radio switched ON for an hour or longer ( without interruption ) until the display resets

Once the display has reset , then post all the letters or numbers ( or a clear photo of the label on the metal casing s