R-SIM IV to Unlock iPhone 4 Baseband 4.11.08 and 4.12.01

R-SIM IV for the iPhone 4 baseband 4.11.08 and 4.12.01 is finally here and the SAM unlock method is no longer working so this is your only option to unlock your iPhone. Below are the instructions for jailbroken and non-jailbroken iPhones for using R-SIM IV.

Step By Step Instructions:
Before you do anything to your phone, you need to know the network to which your iPhone is locked. R-SIM is set to AT&T USA by default. To change, insert R-SIM and your current SIM. Go to Settings>Phone>SIM Applications and select the carrier on which your iPhone is locked to. There are 26 preset carriers. You can manually select other carriers by using Edit IMSI function.

•    Jailbroken iPhone

1. Make sure that your Phone is switched off. Insert the R-SIM IV together with your SIM into the SIM slot. Switch on your iPhone.
2. Connect your iPhone to your computer. Use iTools or iFunBox and go to “var/root/library/lockdown/” and delete all files inside this folder. Switch off your iPhone.
3. Switch your iPhone on and you will be asked to activate it. Launch iTunes and it will be activated.
4. Use iTools or iFunBox and go to “var/root/library/lockdown/” and delete all files inside this folder. Switch off your iPhone.
5. Take out the R-SIM IV and insert your SIM card only.
6. Switch your iPhone on and you will be asked to activate it again. Launch iTunes and it will give an error message. Disconnect iPhone and close iTunes.
7. Launch iTunes and connect your iPhone again. This time it will be activated and you will see the mobile signal. There you have it.

•    Non-Jailbroken iPhone

1. Backup your iPhone.
2. Insert the R-SIM IV with your SIM into the SIM slot. Go to Settings > Reset > Erase All Content and Settings. Your iPhone will reboot and will ask you to activate.
3. Connect it to iTunes and activate it. Once activated, switch off your iPhone.
4. Take out the R-SIM IV and insert your SIM only. Switch on your iPhone and go to Settings > Reset > Erase All Content and Settings. Your iPhone will reboot and will again ask you to activate.
5. Launch iTunes and it will give an error message. Disconnect iPhone and close iTunes.
6. Launch iTunes and connect your iPhone again. This time it will be activated and you will see the mobile signal. There you have it an unlocked iPhone.

The above steps are a lot similar to SAM method but since SAM method doesn’t work anymore your option is R-SIM IV for unlocking your iPhone 4 with the cursed baseband that has taken a lot of time for unlock.

Related News4.12.01Applebaseband 4.11.08How to useiFunBoxiToolsJailbreakR-SIM IVunlock iPhone 4

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