Iphone 3G and Edge??

[bk120]

I had the original iphone unlocked on tmobile and I used it on edge.. I just upgraded to the 3G and unlocked it but I can't use the edge network anymore.. is there a way to still use it? Or am I going to have to upgrade my internet plane to tmobile 3g....

Can the tmobile 3G even be used on the iphone 3G...

Does anyone know? Thanks for you help...

[Lexoticstylez02]

You can try disabling 3G by going to settings, general, network, disable 3g. This may be your problem, I'm not sure.. but you cannot use T-Mobile's 3G network, it runs on a different frequency than the one the iPhone supports.