Did you manage to correct the squares on the maxy dot?

Hi,

I bought Bluetooth 7P6035730E from eBay. It's working well with doing calls but i have an issue with Telephone book after downloading form the telephone the names appear likes dots and each time doing calls using phone book give me dials error  

Can you know why this  issue happen  and what is the solutions? 

 

Please not that my radio is bolero teach screen.