Word has it that, Sprint is in the middle of pushing out a minor over-the-air update to all its carrier-branded HTC One devices registered in the United States. Sadly, this upgrade doesn’t bring any major software developments, such as Android 4.4 KitKat, but it does include a couple of requested stability improvements, one of which being a fix for the annoying issue that repeatedly occurred informing users that an “invalid” SIM card was inserted and the other being HD voice enhancements.


