Previously I mentioned in my posts to unlock iPhone 4S on 5.1 and 5.0.1 using UltraSn0w 1.2.5 and by using Gevey Ultra SIM but these two iPhone unlocks were not compatible with all basebands. There is one other unlock method for iPhone 4S, the R-SIM, that can unlock iPhone 4S baseband 2.0.10 on iOS 5.1 hassle free. There are many people who has updated iPhone 4S to iOS 5.1 but not able to unlock by any other mean for iPhone 4S carrier unlock, they can use R-SIM III to carrier unlock iPhone 4S.
This iPhone 4S unlock is also compatible with other basebands but only for ios 5.0 and 5.0.1. Other basebands include 1.0.11, 1.0.13, and 1.0.14.
R-SIM III unlock is very easy to implement and any person who does not want to jailbreak or dont have much knowledge about jailbreaking and unlocking, he can easily unlock iPhone 4S by using R-SIM 3.
Other features of R-SIM III are mentioned below:
1. No Need to Dial International Emergency Number 112
R-Sim True Plug-and-Play Unlocking SIM Interposer
Complete Unlock with all 2G and 3G data services
Untethered Unlock with no Jailbreak Required
Compatible with all GSM iPhone 4S SIM Cards
No SIM Card Cutting or Physical Modifications
Works on iOS 5.0, 5.0.1
Works on Baseband 1.0.11, 1.013, 1.0.14
Guaranteed Better Reception than Previous
Decreased Power Consumption
Watch below video for further details and understand how R-SIM 3 works.
You can visit below link for more details, pricing and ordering of R-SIM III Unlock for iPhone 4S.