Recent content by tak_touch

yes, I will purchase the Turbo SIM card to try....><"

Hi, I tried to redo the step, it's the same. The phone already back to 2.2.1 now, but it still cannot read my SIM card(Showing no service). Is't I missing some of step that the phone cannot use? I'm not use AT&T sim, I'm using Singtel(Singapore). Is't unlocked by the SIM card??

HI Thanks for your reply, I did downgrade back to 2.2.1, but still cannot work. BTW i will follow the step and doing again. But how about the modem firmware, how to downgrade to lower verison?

Hi Guys I have Iphone 3G, I tried to upgrade the firmware to 3.0, but however, it's not working fine so I try to downgrade it. But now the iphone already recover to normal, only the problem it cannot detect my sim card. I try to reset the network setting in the iphone still cannot help. I find...