Unlock iPhone 4S Using GPP SIM ‘Catch Mode’

If you own an iPhone 4 then here is a good news for you that now you can unlock iPhone 4S. The iPhone 4 unlocking tool is GPP SIM. Means you can unlock iPhone 4S using GPP SIM. The GPP SIM can be used to unlock iPhone 4S on 1.0.14, 1.013 and 1.0.11 basebands running on iOS 5.0 and iOS 5.0.1 firmware. Remember you can only unlock GSM iPhone 4S. The GPP SIM for GSM iPhone 4S costs around $40. You can unlock iPhone 4 using GPP SIM in catch mode. Just follow the below steps to unlock iPhone 4S using “Catch Mode”.

GPP SIM To Unlock iPhone 4S in “Catch Mode”

1. At first put GPP SIM with the original iPhone 4 SIM card
2. Just wait few seconds until the ‘select your iPhone carrier’ screen appears
3. Then select “Catch Mode” from the list
4. Wait until a pop up message appears to say the process is successful
5. Now turn off iPhone 4S immediately and GPP SIM is ready to be used with your any SIM card of your choice
6. Now remove GPP Base SIM and insert your SIM card into your iPhone 4S along with the GPP Turbo SIM

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