i am form india and using sim800l (5v module ).The sim800L is connecting to network provider with airtel sim but gsm module not connecting to network with Vodafone sim. both sim is work in my mobile. Both sim support 4g,3g,2g network.
I am using 5V 2A power adapter and also add 1000uf capacitor on power rail.
I have this module.
If face similer issue then please help me to resolve this.