i have upgraded my 8210 to a 8250 with alot of difficulty by trying over and over and now i cannot read or write to this phone anymore and i would like to upload a flash i have created with new ring tones anyone have any ideas of why it is not possible to read or write to this phone any more i have tried several Flash programs rollis 4.78/51X etc but nothing works.

If you have any ideas please give me a hand.

Thanks