Carrier T-Mobile wifi not showing up?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by backinblack875, Oct 17, 2015.

  1. backinblack875 macrumors 6502a

    backinblack875

    Joined:
    Aug 23, 2010
    Location:
    USA
    #1
    i use T-Mobile wifi back in my home network plenty, even if I have no T-Mobile service, it uses the wifi to send texts and make calls. Now I'm visiting my family back home and it's not working, I'm connected to wifi but the "T-Mobile wifi" isn't showing in the corner of the screen where it usually does. I also tried sending texts with no service and it didn't work.
     

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  2. chscag macrumors 68000

    Joined:
    Feb 17, 2008
    Location:
    Fort Worth, Texas
    #2
    I believe you have to have at least minimum T-Mobile service in order to use T-Mobile WiFi. How is your iPhone supposed to know what service there is if you have no service as indicated on your phone? I can't test this on my phone because T-Mobile service is strong in and around my home and generally throughout my area.
     
  3. rigormortis, Oct 17, 2015
    Last edited: Oct 18, 2015

    rigormortis macrumors 68000

    rigormortis

    Joined:
    Jun 11, 2009
    #3
    try updating the 911 address

    check to make sure VoLTE is enabled

    reseat the sim card
    do this where you have coverage


    turn off iPhone
    remove sim card
    wait 2 minutes

    turn on iPhone
    wait for the phone to boot up
    unlock iPhone
    wait for iPhone to be at the home screen and say no sim

    insert sim card

    let it to do its searching..

    this should fix it


    i don't think the t-mobile service answer that chscag said was correct. i think that would affect activating the phone for the first time

    whenever you have issues with wifi calling make sure you wait 2 minutes or longer, because it takes a while for wifi calling to become enabled. especially when you activate wifi calling on other devices, it takes 2 minutes or so.

    i saw a chart that said old plans don't get wifi calling, but i think that policy no longer exists.

    i would try updating the 911 address and then waiting 5 minutes to give it time for wifi calling to show up
     
  4. rigormortis macrumors 68000

    rigormortis

    Joined:
    Jun 11, 2009
    #4
    • Extends coverage in areas where no cellular network reaches
    that is what t-mobile says, so even if you have no service it should still work
    its probably the 911 address
     
  5. chscag macrumors 68000

    Joined:
    Feb 17, 2008
    Location:
    Fort Worth, Texas
    #5
    I just checked this with T-Mobile and you're right. It also reminded me to update my 911 address. :)
     
  6. rigormortis macrumors 68000

    rigormortis

    Joined:
    Jun 11, 2009
    #6
    once the iPhone's 911 address is entered, and wifi calling is enabled, it no longer requires to be powered on, and you can place or receive calls on other devices, hahaha
     
  7. chscag macrumors 68000

    Joined:
    Feb 17, 2008
    Location:
    Fort Worth, Texas
    #7
    I wonder though, if like the OP, you move or go somewhere and there is no signal and it's not your 911 address, does that mean you have to update the 911 address to that where you're currently located?
     
  8. rigormortis macrumors 68000

    rigormortis

    Joined:
    Jun 11, 2009
    #8
    once i tell it my 911 address and connect to wifi calling on the iPhone
    i can turn off the iPhone and take my ipad to another wifi hotspot and make calls
    i think I'm supposed to update the 911 address on the ipad , in this situation but i havent done that
    yet..

    i just made calls.

    it didn't always work on the first try. i usually have to wait a few minutes after turning off the iPhone
     

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