Okay so yesterday evening my jio number started working. The wind 4 isn't a bad phone, just unhappy with that uneven brightness thing as it has a tft screen so you can notice those small leds at the bottom and slight variation on brightness, That apart the phone is decent. About jio, call quality is excellent. Data speed at my place was pathetic at 2.5mbps only, inhale lodged a complaint regarding that and they say it will be resolved. As soon as I was out of the locality I was getting all 5 bars and a whopping 40mbps data speed. Even at one of my clinic s where there are no rcom signals, it's clocking around 10mbps Sent from my LGLS991 using Tapatalk