Gevey SIM Dropping

[aon524]

Hello there. Today I got two Three UK micro-sims and am using them on two different iPhones. On one it works fine, but on the other, it just switches to the "Invalid SIM" message every two hours or so. It works perfectly after following a restart and repeating the steps, but it's getting bad to have to keep doing this. Does anybody know what might be causing this problem? Thanks.

 

[bryan]

You'd better leave the gevey sim into your phone forever. If you take it away, it will be locked. But you just replace it, and re-active with the same procedure.