Mercedes MB TRUCK BASE LOW USB

[Tecdiag]

Hello all , i have carradio for mercedes show blocked on the screen and i don't know the code please does anyone can reset and give me the code .
bp-nr 7620 000 220
mb nr A 000 446 63 62
Model MB TRUCK BASE LOW USB
EEPROM /95320
Thx all in advance

[Zann]

Code is 0704. I'm not sure about reset.

[irfa]

file is reseted.....................same code