R-SIM 7+ ?
All I can say fella is that I bought an R-SIM 5 to unlock my iPhone 4S on UK T-Mobile running 6.0.1 and it didn't work plus it broke my SIM card and my Mum's SIM. Also they don't slot in with your sim as easy as the sellers make out.
Originally Posted by Carlos94080
Bearing in mind you have a device that costs £540 (English pounds), is it really worth sticking something in that phone that costs about £20 because you could get it stuck in your sim section inside the phone.
I through mine in the bin, maybe I was unlucky and just got a dodgy one. But even so, you get it stuck in your phone. Your warranty won't cover it.
This is only my experience. Also you don't get as strong reception and it drains the battery a little too. Just not worth it in my eyes.
I ended up purchasing an IEMI unlock for £100, however I got my 4s at a good price in the first place, so it didn't feel as bad paying for the unlock.