I've got a HTC Hero (i believe it's unlocked) brought from China with sim card from China Unicom. Now I just received company mobile with ATT. I tried to move ATT sim card to HTC Hero, but found the size of both sim cards are same, but size of copper contacts are different. I didn't go on afraid of burning the card or phone. Anyone knows will it work or I need to change the card with ATT or whatever? Thanks.
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