Navi fiat 250 vp2 blocked

[Tecdiag]

hello all,
please i have this Navi for citroen blocked on logo citroen ! does anyone have an idea !
all the buttom does not work but only on/off and i hear the sound of radio .
i post a screen shot

[catalinosonesti]

hy,maybe 2 times or more wrong code tryied ,and block
post serial nr ,or foto

[Tecdiag]

hy,maybe 2 times or more wrong code tryied ,and block
post serial nr ,or foto
Hi, if the carradio is blocked with the wrong code ! i will not hear the sound of radio chanel .

[Tecdiag]

please does anyone can help