I can't use my mobile data. If it helps it says cellular data not connected

I purchased a Samsung S7 Edge about a year a half ago from AT&T when I was on my mom's phone plan. A couple months after getting the phone, I had

The notification "android system" " power supply" " tap to change USB options to charge connected device" STAYS on my phone. Then I tap it it goes to

When I call someone my name or number are not displayed on their phone it says private number

I keep getting an error message on my phone that says service has been temporarily turned off by the carrier .I checked to make sure I wasn't missing

I bought this phone from a friend it is an at&t phone. I need to network unlock it so I can put my version sim card into it so I can Finnish out m

I requested an unlock 2days ago ; i have not received email with the link that expires in 24 hours

I order a phone online and my bank account got charged twice

I was just issued a phone by my work. I'd like to be able to unlock this phone so that I can add a Tmobile e-sim (from my personal device) to it and n

How do I retrieve text messages