I am in the US on Tmobile with a 3G data plan and just received my i7500 in the mail. I manually updated to the H7 rom without a CSC and manually put in my APN and got my 3G working. However, I cannot send any SMS or MMS text messages. I can receive them, but not send them. Is there something wrong I am doing when inputting my data in the APN? Anyone with similar experiences? Any help would be greatly appreciated. Thanks for the help.