pleas what can i do i jailbreked and used any sim but now my iphone wouldnt pick up itunes ....so i went into recovery and restored it but it didnt work so now it jus doesnt work how would would i restore or fix this

try install itune on another computer and connect your iphone to it see if it works

Try rebooting your PC again. I had the same issue and rebooting the PC did help.