I can't upgrade 3310 to 5.xx

[o_MAST]

Hi guys,
how I can upgrade my 3310 to 5.xx?
My phone was 4.02 (now is 4.45) and HW 612.

Bye

[||Joe]

hi
i think you'll try write 3310_503.fls from http://www.gengheraenga.net/ for example /n/images/smiles/icon_smile.gif
after this notify me please, whats difference between 4.45 and 5.03