I want to flash my 6310i with newer firmware as it keeps restarting, from searching around i have learnt that you dont need a box and its possible to flash this phone with just a cable.

What cable(s) would i need and what software would i need?

I have found a tutorial for flashing DCT3 phone but not for DCT4 (i.e 6310i).

All help is very much appreciated!

Thanks,