I bought a locked iPhone 4 on contract with AT&T, and jailbroke/unlocked it myself. I am currently in Jordan visiting my family, and am unable to browse the web at all using a cellular data connection; the phone won't even show a 3G or E symbol. I am using Zain, which sells the iPhone 4 at some of their stores. I found the APN settings on their website, and I tried using the iPhone Configuration Utility, help.benm.at, and unlockit.co.nz to set them on the phone, but none of them have worked. The settings show up under Settings > General > Profile, but the 3G or E symbol still won't show up. I also registered for a 20MB data plan.

Here is the link to the Zain site's APN settings.

I've been searching and trying to find an answer to this problem for a few days now, but I have not been able to find anything. ANY help at all would be greatly appreciated. Thanks in advance!