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I'm interested in purchasing an Asus Padfone X or S for use on T-mobile. However, it doesn't support band 1700, which means that I will only get 4g in areas with refarmed 1900 spectrum. T-mobile helpfully tells me "Pittsburgh has been refarmed", which doesn't tell me if my home 15 miles south of the city will work on that.

I currently have a Sony Xperia Ion that I'm using. I would like to use this phone to test the 1900 coverage. How do I disable the 1700 band on my phone to see what sort of 4g coverage I get? I tried *#2263#, which I found at http://forums.androidcentral.com/t-galaxy-s-iii/201259-how-disable-lte-t-s3-you-can-disable-hspa-too.html, but my phone just says it's an invalid phone.

Nicholas
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  • I vaguely remember there was some build.prop tweak, but I'm not 100% sure. Trying a google search on "build.prop 4g 1900 1700 frequency" at least turned up 1900 = Band 2, 1700 = Band 4. Using that as input for another Google search: "build.prop" 4g disable "band 4" gives you several good entry points to try at least (3,000 hits). Most solutions however might require root (certainly will when you must edit build.prop). Luckily, there are several "dialer codes" mentioned along. Good luck! – Izzy Dec 01 '15 at 22:56
  • @Izzy I'll try doing some research with this as a starting point. Thanks so much! – Nicholas Dec 02 '15 at 14:16
  • Anytime! Please remember to answer your own question when you've come up with results :) Good luck! – Izzy Dec 02 '15 at 15:49
  • @Izzy I'll certainly do that if I can. If this requires rooting the phone, though, I may not try it. This was an AT&T phone that I had to go through all kinds of craziness with to get to work on T-Mobile. I don't want to risk locking myself back out. – Nicholas Dec 02 '15 at 16:53
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    I found http://forum.xda-developers.com/showthread.php?t=2469536, which I feel may have gotten me half way there with dialer code ##4636##. However, I don't know which of the options, if any, disable the 1700/2100 bands. I'll post again if I learn any more. – Nicholas Dec 02 '15 at 17:22
  • AFAIR, that code is for usage stats (apps, battery, etc.). Long time not checked, maybe things have changed … But again I vaguely remember having seen some "band options" in one of those "secret menus". Keep my fingers crossed! – Izzy Dec 02 '15 at 18:44

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