Increase your JIO 4g speed ( 100℅ worked )

Dial *#*#4636#*## select phone testing . then select lte/gsm in network mode ...

now make the APN Settings manually :-

go to :- settings - more - mobile network - access points - new apn

apn name  - jio
apn - jionet
proxy - not set
port - not set
server - not set
authentication type - PAP or CHAP
apn type - default,supl,xcap
apn protocol - ipv4/ipv6
bearer - unspecified

thats it njoy