When detecting nucleic acid, the current contact information (leaving Unicom mobile phone card) is abnormal, sometimes it can be used, and sometimes it can't be connected?

It can't be the water. Look at the following: [1] Check whether the mobile phone is in arrears and asks for compensation; [2] Check whether the mobile phone is set with call forwarding, flight mode on and call barring. , check whether the function or signal of the mobile phone is normal, change the mobile phone or location and try again; If you are not in the urban area, you can't use it, claiming to check whether the local network signal is normal, and the number has no registered driving license now; [5] Unable to answer the phone when trying to restart or replace the phone; September 24, 200715: 00 [Hidden] Take the mobile phone card to the business hall for testing or replacement.