Microsoft has started pushing out a new update to its Lumia 550 Windows 10 Mobile smartphone. Carrying a firmware version of 01078.00042.16352.50012, the update is hitting unlocked Lumia 550 units, but - sadly - doesn't include an official change-log.
However, according to reports, it brings along some camera-related improvements as well as improvements related to WiFi, Cellular, Bluetooth, and GPS. Some stability-related improvements are also there, as are some general bug fixes.
Those waiting for the 'Double Tap to Wake' feature will be disappointed as the update doesn't include the functionality. In case you missed, other Win10-powered phones including the Lumia 650, 950, and 950 XL have already got the feature.
I have MS Lumia 640 Dual SIM with Windows 10 Mobile OS build: 10.0.14393.103 & I have double tap to wake feature & also double tap to sleep feature(double tap on navigation bar)
I have a Lumia 650 and I still do not have double tap to wake up
only ANDROID can save microsoft version of Nokia phones.otherwise RIP.