5.1 Lollipop Mobile Data Issue

[StudDroid]

I just updated my Moto X to android 5.1 and whenever I turn off wifi and you cellular data, the icon has an exclamation mark on it. I'm not able to do anything with data and all help is appreciated.

 

[srekal08]

I updated last night and I'm having the same issue, T-mobile.

Fixed: Settings -> Cellular network -> Access Point Name -> APN protocol
Change to IPv4/IPv6

Started working.

 

[darkNiGHTS]

Yess! Thank you so much. Just spent 30 minutes on the phone with T-mobile and they couldn't figure it out.

 

[pbags]

Do you have the moto x 2nd gen model? Is it safe to upgrade? Mine came with Android 4.4 Kitkat, and I'm nervous about upgrading on t-mobile.

 

[HangerLane]

This worked on my Doogee Valencia2 Y100Pro

1. Install and open app "Hidden Android Settings" (by 0Alex)

2. Select choose and open "RadioInfo"

3. Move to Last option "TOGGLE DNS CHECK" - mine read "0.0.0.0 not allowed"

press the "TOGGLE DNS CHECK" so that it displays "0.0.0.0 Allowed"

That's it - my mobile data worked, I hope it works for you

 

[alanpc23]

Changing to IPv4/IPv6 fixed the data on my Oukitel K4000 - thanks for the tip.