hi all first time here now i have just bought a new opo and upon setting up and inserting the sim when the phone is on it will pick up the sim but when you reboot the sim is gone also the phone when u go to setting and try changing from lte to 3g it wont change also keep getting errors when you try and search for network service so if anyone has some ideas as to what may be the problem would be glad to here them as have reflashed the phone still the same and sorry about my poor typing