A bit of detective work can certainly go a long way. Some little-known sections of Nokia's Windows Phone diagnostics app were found by Nanapho as it analyzed its XAP file, lending credence to rumors that AT&T-branded Lumia phones are being tested at present time. The site uncovered screens dealing with "LTE TX" and "LTE Band Lock," with the latter adding references to Band 4 and Band 17 -- AT&T-specific radios. The last interesting piece of evidence was dug up in the MMS settings tool, which offers code that refers
