The LG LS450 model number was spotted again on LG Open Source code website which shows the device’s OS and Software Version.
As you can see from above scren shot, the LG LS450 will be released with Android 6.0 M and its Software Version is LS450ZV4.
The LG LS450 could be the LG K4 for Boost mobile.
Verizon wireless has released the LG VS425 model as the LG K4.
The LG K4 is LG’s Budget K series samrt phone, it offers features like a 4.5-inch display with 854 x 480 pixels, a 1.1 GHz quad-core processor, 1.5 GB of RAM, and 16 GB of internal memory.