HelloF23 user let me clear. The last update of January was 5G update. For jio 5G enable you need to stay at list 3 days in 5G network. It takes some time registration. Now stop blaming samsung. Its a 5G SA update
Galti se reply kardiya dusri jagah karna tha. Ek bar reset kar ke dekho network settings hope its works for you. Mere divice me network issue nai hai working fine with airtel and vi