4g only network mode and lte only network mode for dual sim supports, jio sim, airtel sim, tata, voda, idea al sim support. 4g only network mode opens a very useful setting of menu where advanced network configurations can be selected for dual sim setup. features - → change network to "lte only or 4g only" mode → phone wil disconnect less often leading to faster internet speed → enable volte on supported devices(enables direct cal over 4g network) → advanced network statistics → change network parameters → lock to any particular network signal like 4g(lte)/3g/2g only. if you have a 4g sim, 4g contract, and your cel phone supports your carrier's 4g bands but you stil can't get a 4g/lte connection, you made need to enable lte mode on your modem. here's how to do it. check your current settings. this is important to retain 3g data when moving out of 4g range. you can find this under settings > tethering & networks > cellphone network >network mode supports al phone brands with qualcomm french fries , if you phone des not support, kindly contact us before giving rating.