Help in HTC one X 3G data

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I got the One X a week ago and I made unlock for it, and I installed a custom ROM (ARHD) but the 3G data is not working.
I already have the correct APN settings (I'm living in Japan using softbank)..!! but when I try to connect it says disconnected .
So anybody can help me in such issue?????

I tried leedroid and other custom ROM but all the same, no 3G data connection at all, just the telephone..!!

please helpppppp

Wrong section. This has nothing to do with the rom you flashed by the way. Your apn settings only support voice, not data. Or you need to find a different sim card that is compatible with your 3g.

Sent from my HTC One X using Tapatalk 2

But I would to say that I'm using the SIM and APN settings in my ONE X as the same when I used in my previous DHD.
So I do not think that the SIM and or APN have relation with that... because when I put the SIM back again in my DHD, I opened the 3G and sent MMS normally...!!!!!