Works With Most GSM CARRIERS Compatible with Firmware Versions4.0/4.1/4.2.1/4.3/4.3.1/4.3.2/4.3.3 FIRMWARE 01.59.00/02.10.04/03.10.01/4.10/4.10.1 Does not work with the IPHONE 2G 3G/3GS,just fit for iphone 4G Instructions included in packaging More Stable Minor bug FIX Compatible with more Sim Unlock Your AT&T Stone PHONE!!!!!
Support 3G network !!!!!Internet & Mail!!!! No Jailbreak , No software unlock!!!!!!!! It does NOT void your IPHONE WARRANTY!!!!!!! Not Compatible with: iPhone 2G & iPhone 3G & iPhone 3GS!!!!!! Instructions to Use the Gevey pro iPhone 4 unlock SIM Card? Step 1: Turn of your iPhone 4 and insert your SIM card and GEVEY SIM Together with the metal SIM tray provided. Step 2: Turn on your iPhone and wait for the SIM Welcome menu to show and then select accept. Step 3: At the beginning a no service message will show on your iPhone.Do not do anything and wait until you see one signal bar appears on the top left corner. Step 4: After you see the signal bar you dial 112and hang-up within 2 seconds. Step 5: Turn on the Airplane Mode and then turn off right away. Your iPhone will show SIM Failure and then No SIM Card Installed. Step 6: Until the No SIM Card Installed message shows up turn on the Airplane Mode again and turn it off right away again. The SIM Failure message will show and the signal will show up after a few seconds.
Your iPhone 4 should now be unlocked on baseband 02.10.04, 03.10.01, 4.10. After all the steps above, if there is still no signal, power off your iPhone, switch it back on and repeat all the steps from the beginning.