Anyone know why it says I have to turn on my hotspot for iPad. Same thing with FaceTime over cellular.
I always use my hotspot on my iPhone 6 but for some reason my iPad air2 doesn't provide this option.
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you have to call them and politely ask them to turn on wifi hotspot. they will charge you $0 for this, or they might actually want money, like verizon does, on individual plans
you may simply have new service and it takes a while for AT&T to turn on your hotspot.
t-mobile includes hotspot on their iPad data only plans. but i had to call them to ask to have it enabled, for free.
basic trouble shooting
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turn off iPad
eject sim card
turn on iPad with no sim and wait for it to boot up, it should say NO SIM
insert sim card
this will cause the iPad to go through its searching phase and update the sim card and i've found from testing and troubleshooting that this will restore lost features, such as VoLTE or Visual Voice Mail
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i looked at your screen capture more closely. it says AT&T prepaid
by any chance did you actually pay for an AT&T go phone sim for your iPad?
or are you using the regular AT&T sim that came with the iPad / or the free AT&T sim they give you?
did you sign up for AT&T service diretly on the iPad like you are supposed to ? or did you do something else?