• New Nexuses Now Support T-Mobile Band 12



    Most of the tech sites seem content discussing the new emoji available in the Android 6.0.1 update, but Android Police has dug a little deeper and found something potentially more important, at least for TMO subscribers—full support for Band 12 on the Nexus 5X and 6P.

    For those not 100% clear on the importance of Band 12 support (like the Canadian writing this), AP does a pretty good job breaking it down. Basically, T-Mobile uses Band 12 for voice over LTE calling (VoLTE). Since there are areas in the United States where TMO's only coverage is on Band 12, devices have to be certified to support that band.

    Did I get that more or less right?

    AP installed Android 6.0.1 on both the 5X and 6P and has confirmed Band 12 support for both phones. The only catch is that there's currently no OTA update available—if you want Band 12 support right now you'll have to flash the latest factory images yourself.

    Source: Android Police

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    This article was originally published in forum thread: New Nexuses Now Support T-Mobile Band 12 started by acurrie View original post
    Comments 3 Comments
    1. HansCT's Avatar
      HansCT -
      The band 12 enabling OTA is actually available for the latest Motorola X Pure Edition, which is the fifth factory unlocked direct from manufacturer Universal phone along with the latest iPhones.

      Just make sure not to confuse it with the previous Moto X, where the factory unlocked - but no CDMA - variant also gets referred to as "pure", very confusing. The newer one, similar to the international Moto X Style, is model number XT-1575.

      With all of these there are some ESN ranges that Verizon for Sprint have not yet entered into their whitelist database, so if they won't activate on one of its MVNO's, may need to become a mothership customer for a month first.
      Yet another advantage of the GSM ecosystems...
    1. HansCT's Avatar
      HansCT -
      The best source in my opinion for updated information on band 12 compatibility is ​http://www.spectrumgateway.com/compatible-phones

      If you come across any information that has not yet made it there, that site is maintained by https://www.reddit.com/user/sgteq?sort=top&t=month , completely independently of T Mobile. Lots of other good resources there too regarding band 12
    1. HansCT's Avatar
      HansCT -
      Quote Originally Posted by acurrie View Post
      T-Mobile uses Band 12 for voice over LTE calling (VoLTE). Since there are areas in the United States where TMO's only coverage is on Band 12, devices have to be certified to support that band.

      Did I get that more or less right?
      yes
      Many people were very angry at Motorola for supporting that restriction, when they actually removed and 12 support through OTA updates, but apparently that was actually required by the FCC. And Motorola did give full refund to people affected by that decision, so in my opinion they were doing the right thing.

      Many people are happily putting non-band 12 devices on T Mobile, and that is fine if they don't mind missing out on LTE coverage , or if band 12 has not even been rolled out yet in their areas and they do not travel much, fully understand the consequences of their decision.
      But for the most part in my opinion it is better to recommend that anyone going on t-mobile should at this point be purchasing a band 12 compatible device.
      There are some lesser unbranded unlocked GSM devices coming in internationally that happen to support band 12 for LTE data only without T Mobile volte certification , and are allowed by the FCC to be sold in the United States.

      Also now some AT&T branded phones ship with band 12 compatibility instead of their primary LTE band 17, which are now largely interoperable thanks to extensive rollout of MFBI technology, a deal that AT&T made with the FCC in 2013 to correct a spectrum problem in 700Mhz blocks A, B & C
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