spv c500 pairing with gps bt 77 ?

[Guest dave924]

;) I have updated my rom on my spv c500 to version 4.2.1.2 from the orange site, now i have no option for "bt serial port setup" i have no idea what to do now as this was the only way i found to pair this with my BT77 gps receiver....... how do i get this option back??? or pair the two another way???? ;)