Edited by ari1481997 at 2016-12-04 12:55

I am a meizu m2 user  and using both idea 4g and jio 4g sim
all you have to do after inserting sim is changing the apn settings which will turn on the internet .
As meizu m2 doesn't supports volte so you have to download jio 4g voice install it... using that you have to  call on 1977 ... a confirmation message will come and all your services will resume ..

since meizu m2 doesnt supports volte but both of the sim are 4g enabled .. preferably put the jio sim on 1st sim slot

regarding the access point settings

go to settings
Sims and networks
APN

add an APN if not any
give any name
access point as  "jionet"
specify APN type as "default,supl"
bearer LTE
rest all as it is

and there you go you would have started receiving the internet .. all you have to do is the confirmation work mentioned above that 1977 thing

hope it helps