upgrade 8210 t0 8310

[jpangku]

can I upgrade my 8210 to 8310 ?
what'z d diffrerent between 8250 software 3.20 with 8250 software 5.02 ?
and why my hands free become unsuable when I Upgrade my 8210 to 8250 ?

thx a lot

[Kjetil]

Hi there
I can only answer the first question, and I,m sorry to say that it's
virtually impossible to make a 8210 to 8310!!
The Hardaware is completely different. You do know that the 8310 has a FM radio