Since i had my mx4 pro more and more people complain that is impossible reach me. it says that my phone turned off. sometimes i too cant call ( no beeping when calling someone). restart usually helps, but it’s practically useless phone if people cant call to me… Is there anything i can do to fix it ? Sim card is new. Tried ##4636##, LTE/GSM cant be set. it stay on unknown. if i set 4g only i cant call and no1 can call to me.
I have the same problem and still unsolved. Since i bought i use it in only gsm band, it lets me connect internet only 2g. If i turn on 3g or 4g nobody calls me and lost internet. I have posted my issue also. Do you have any problem with imei no or serial no ?