Lost 3g after iOS4 upgrade

[mlipad]

I upgraded to iOS4. It must have rest the APN setting so I can use the AT&T 3g SIM card from my laptop. The problem is, the APN setting is now gone from the 'cellular data' menu. Anyone experiencing the same problem? Any ideas?

 

[Domenick]

Just visit Unlockit - APN Changer for your iPhone from your iPhone/iPad and follow the instructions on screen.

 

[Bivack]

how do you visit the unlockit site if you have lost your 3G connection, uhhh

 

[Snarky30]

how do you visit the unlockit site if you have lost your 3G connection, uhhh

Find a wifi hotspot.