This is the LG UP DLL for LG K371 model.
After purchase, You will be able to download a text file [lg-k371-dll.txt] which includes the download url for the LG K371 DLL file.
The DLL file must be installed before you can use LG UP to flash latest firmware onto LG K371
The DLL file is used to detect your phone model number and software version. If you experience uknown model number issue on LG UP when trying to flash firmware with LG UP, you will need to install this LG K371 DLL for LG UP;