Problem Lost signal GSM

brodzik_19 · Post time 2016-12-1 19:26:05

This screen Red Bull

Jay_Ponce · Post time 2016-12-1 23:16:58

Gsm signal keeps on fluctuating. It has the weakest gsm reception of all phones i own since 2007. That goes to show how bad is the gsm signal of this umi super

brodzik_19 · Post time 2016-12-5 17:23:17

I did solve the problem with the GSM signal.
As you can see on the screenshot IMEI lost after format by sp flash, no assigned IMEI is not allowed to connect to the GSM network. After assigning the IMEI SIM1 and SIM2 signal came back and everything is ok.

jobias · Post time 2016-12-6 11:44:49

I can't make the SN Writer Tool detect my Umi Super, but i believe the drivers are well instaled becuase Flashtool detects it well.

How did you make SN Writer Tool detect your Umi super?

brodzik_19 · Post time 2016-12-6 18:31:41

http://community.umidigi.com/for ... amp;page=5#pid34016

Jay_Ponce · Post time 2016-12-10 23:28:58

GSM signal is very poor. Keeps on disconnecting

MarcinP · Post time 2016-12-11 22:46:05

Redbull mobile and virgin mobile are third party mobile networks which is mean that they using other mobile provider network. Did you switched on roaming in settings option? You need check which bands using virgin and Redbull and compare with umi super specifications. Of course after replacing sim cards you should restart your device and mandatory is swap sim cards to different slot to check phone antenna.