I have issue with my Note5. Im using normally a Celcom Network. Since Note5 can use 2 sim so i decided to buy a tunetalk prepaid sim. After i installed tunetalk sim and received a CP message to install tunetalk setting. I realize my celcom network change ti tunetalk. I try to manual network setting but no network option for celcom. By the way my celcom network already overide by tunetalk. But i can still make a phone call and browse. Just the carrier celcom change to tunetalk. Anybody know how to resolve this probem.

Done do that one bro, but still same. I go to celcom, they change the new sim. But problem still.