My galaxy m31 have some serious issue of signal reception. I changed my Airtel sim twice and BSNL sim once but result is same. Airtel signal fluctuate between 4G to 2G and vice versa and voice quality also fall due to this. As per service center, the...
Which Network you are using?I faced the same issue with Airtel Sim. Network was not issue bcz same sim or other Airtel Sim fine at same location. M31 network reception is very poor. You may try with other network sim. Better to get replacement with ...