The LG K10 for T-mobile and metroPCS has just been certified by the Bluetooth SIG.
The FCC documents and Bluetooth SIG listing did not mention the details of the device.
According to our sources, The LG K428 is K10 for T-mobile and the LG MS428 is K10 for MetroPCS.
The details of the LG VS500 remain mystery. We only know that it is one of the “K” series smart phone for Verizon Wireless.