K700i unlock

whats the best way to unlock a k700i?
software or code? (it doesnt matter if its permanent or not as long the price is low)
i have no cables for it but i can obtain one easily.
the phone is getting old but its in good shape i want to unlock it but dont know how.

I think you can get the k700i patched unlocked which is free.

what of sort of cable should i use?
what programs?
just tried to create sim-lock patch
"Firmwares with base address $44000000 are not supported."

it is now unlocked had to pay £5...