Use APKPure App
Get 4G Switcher old version APK for Android
सेना VoLTE और 4 जी 3 जी / 2 जी नेटवर्क पर।
Change Signal to only 4G. Especially for phones which don't have 4G/3G option and have only 2G/3G/4G.
Switch to this app for better signal of 4G or 3G.