Error: Bypass!> REQ. on M600i

[rafest]

Dear KulanKendi:

I have purchased one credit to you but all the times I try to change the CDA I receve this message (of course I use the right cale, instructions, etc......) :

Hold 'C' or '@' (some PDA) key and plug DCU60 USB cable.
Phone Connected...
Error: Bypass!> REQ.


Please help me.

Thanks in advance