Iphone 3G Cant download music

[ub4this]

I have a iphone 3G 8GB have already unlocked and using it on tmoblie. I tried to upload some music via itunes and it said the sim card was not valid or some thing like that. I was wondering if there is a way to download music and ringers to the phone. :angry:

[macgirl]

Just remove the SIM before you connect it to your computer - it should sync without any problems then...

[the7thanomily]

Im still interested in downloading music and vids from the Internet. Are there any jailbreak apps that can facilitate this functionality? P