As you might already know, the US variants of the Sony Xperia XZ and X Compact smartphones do not officially include the fingerprint scanning feature, but that doesn't mean you can't turn it on. Yes, you heard it right, it's possible to enable fingerprint scanner on the devices. There's a software trick involved: all you have to do is to flash the unit to a different region (say, the UK). For example, the first screenshot below is of a US Xperia XZ (with the customization number: 1304-9026), while the right one was taken after the unit was flashed with UK firmware (note that the...
Source: http://www.gsmarena.com/its_possible_to_enable_fingerprint_scanner_on_sony_xperia_xz_and_x_compact_units_in_us-news-20908.php
