R-SIM12 has multiple built-in programs. support upgrade by dongle ,edit ICCID,
 

R-SIM12 has multiple built-in programs. It allows switching to other unlocking modes. Switch code *5005*7672*00#

The latest iOS11.2 system. After ICCID blocked, R-SIM12 built-in TMSI.2G/3G/4G unlocking mode still works for unlocking iphone 4G signal, by using previous operation methods for i7&6s. For customers who successfully unlocked 4G signal of China Mobile and Unicom, DO COMPLY WITH the following notes: Do not root the phone with the computer( directly update your system from the phone, i.e. Settings-General-Software Update); Do not wipe your iPhone; Do not change SIM card; Do not change unlocking mode. And your phone will continuously work like unlocked.

R-SIM team is working hard for new perfect unlocking methods…, coming soon!
http://forum.gsmhosting.com/vbb/f819...ction-2289699/


How to use R-SIM12 TMSI Model--From 6th Dec 2017
https://www.youtube.com/watch?v=F0R-URnMu9Q

How to use R-SIM12 TMSI Model--From 6th Dec 2017
https://www.youtube.com/watch?v=F0R-URnMu9Q

This mode its not stable

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