Munchen RD104 BP3791

[Romanky]

Blaupunkt Munchen RD104 BP3791
Hi I have a error keycard for the Blaupunkt,
VERY OLD UNIT THE CARD IS A REPLACEMENT FOR CARD 1

PLEASE CAN YOU HELP NO CARD ?

MCU : HC05 -mask D20J

dump - code 1204

[aissa09]

here is the solution tests by me :manuflag:

[ciuviu]

This should help
Rgds