why does my 4G not work after updating to lollipop?

[AC Question]

I have a blu 6.0 hd phone and received a wireless update telling me to update to lollipop. I thought u were supposed to updatbe your phone so i did. Now my 4G will not work please help

 

[B. Diddy]

Welcome to Android Central! Does it connect to 3G, or are you unable to connect to mobile data at all?

 

[T-ninja]

Call you carrier
Your 4g may be blocked mine was once but then I called my carrier and they fixed it

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