12-04-19 11:10 AM
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  1. Chuck Finley69's Avatar
    Chuck Finley - don't you have AT&T?
    I do for carrier locked KEYone, however I attempted to use T-Mobile for my factory unlocked KEYone and got no love either since it was prepaid account.
    12-01-19 12:24 AM
  2. fop518's Avatar
    oddly it was blackberry that removed wifi calling for tmobile. it worked on initial releases then they removed it from the modem file. the current fix that works sadly is to flash the original modem file and do those other things. still works to this day. its not tmobile here. its stupid blackberry with no explanation why. they enabled it back for rogers os releases
    12-03-19 10:47 PM
  3. fop518's Avatar
    this is for key2. apparently most keyones worked on tmobile for wifi calling. I had the dual sim indian one and it didnt. also a blackberry os issue and not tmobile
    12-03-19 10:48 PM
  4. Summer_Moon's Avatar
    I got the app, and still trying to understand its full capabilities. What do you mean by "summer moon listed instructions"?
    Hi, I'm Summer_Moon, here are the instructions https://forums.crackberry.com/blackb...rking-1163485/

    It's post #7 and #11 (<--- really this one) and yes, you do have to roll back your modem. It will not work with any other modem version (at least not in the US).
    12-04-19 08:33 AM
  5. Summer_Moon's Avatar
    I would just like to know if you are talking about T-Mobile USA. I have not had any luck whatsoever getting wifi calling to work, using Summermoon's or any other method. (I have not rolled back my modem software, which seems to be the only thing that people say works with US carriers.) Digits, which is really clumsy, does actually work for me.
    Yep, have to roll back the modem. The other versions have it disabled (if you're interested you can actually open up the modem code in the autoloaders posted on here and see it disabled based MCC and other fun data).
    12-04-19 08:35 AM
  6. Summer_Moon's Avatar
    So T-Mobile doesn’t officially support WFC on Key2 vs the KEYone which didn’t require the special extra voodoo? While I appreciate the go around information for others to attempt, it’s ridiculous to require all this when BYOD is supposed to be part of the base customer service and sales platform.

    Thanks again for the extra information as it’s better than nothing especially for those not on the digits platform
    Yep, not officially supported. But really it's the modem software from TCL where they purposefully disabled it. It's less on T-Mobile and more on TCL for disabling it. So it's not really "extra voodoo" it's just that the KEYone modem doesn't have it disabled and once you roll back the modem where it's not hardcoded to not work, boom you're back into normal voodoo land.
    12-04-19 08:39 AM
  7. tmommy's Avatar
    Oh, gosh. My life has progressed a bit now where I actually could use true (non-Digits)wifi calling and I might look into this (rolling the software back) more closely. Thanks for clearing this up.
    Summer_Moon likes this.
    12-04-19 11:10 AM
32 12

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