nec 338 unlock problem

[ruvanw1979]

i try to unlock nec 338 using f-g box but select com port correctly comming msg

Reading info...
Error ... !
Ready...
Time needed - 00:00:00

pl help me . i already re installed soft and drivers

[sulai2k]

You must use sharp gx 30 cable, +5v on and v04 not supported.