R-sim 10+ and Iphone6 Problem

Ok guys,

This is my problem,

i have a Iphone 6 sprint lock with 9.1 and R-sim 10+

when i insert the R-sim10+ with the att sim the Phone will go to the apple logo and restart and Say Activation Recurred and ask for my Itunes email and password to activated

any one know how can i fix this
thank you