Something wrong in Samsung galaxy M04 with BSNL 4G VoLTE sim.... 4G automatically switch to 3G even srong 4G signal available at our location as bsnl tower is nearly around 1km from my home so we are getting 700mhz high speed bsnl 4g network. I am facing an issue that network automatically switch to 3g even network mode is in 2g,3g,4g auto. In my area BSNL 4g have good coverage even though my bsnl sim getting 4g when inserted in another brand mobile but in M04 4g switch automatically to 3G after one or two days even in the same location. For getting 4g network again i have to manually switch network to
3g,2g auto then again to 4g,3g,2g auto or restart device which is terrible. Tried resetting APN but it works only for 1/2 days after that again switch to 3G. I recommended bsnl 4g to my neighbor who have OPPO device still he is getting 4g so the 4g network is stable in our area.. The problem is with my device! Samsung should rollout an OTA update for M04 optimised for bsnl 4g.
Another issue is that outgoing call will not connect in 4g at first time when I dial a number but connects when I cut the call and dial the number again.
Getting only bsnl 3g network even network mode is in Lte,3g, 2g auto.
Bsnl mobile data APN settings
Bsnl mms APN settings
