Creado por nakedow:
_____________METHOD : 1________________
1. Open dialer and type : *#*#4636#*#*
2. Choose SIM1 or SIM2 to enter reception menu.
3. From dropdown menu ( LTE/UMTS auto (prl) as default ) change it to : GSM only
4. Wait until your cellular will reset and turn back on.
5. Less dBm amount = better signal strenght.
6. Test best signal for your network
________________________________________

_____________METHOD : 2________________
1. Open SIM tray
2. Change your SIM car slot to Slot 2
3. Check if your signal strenght increased

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