Help Needed: Nissan Qashqai Blaupunkt Radio Code

[MED90]

Hi everyone,
I’m Mohamed from Tunisia. I’ve been driving a Nissan Qashqai for a few years and recently I need to unlock my Blaupunkt radio.
Here are the details:

• Device number: 7 612 830 079
  
• Serial number: 3037228
  
• Date: 13.09.09

Any help would be really appreciated, thanks a lot!