This is a common source for these specific board-level files (MSD6486T TP.MS6486T.PB753). You can check their firmware file listing for the exact archive you mentioned. 3. How to Update via USB

Once you have both part1 and part2 of the .rar archive, do the following:

To ensure you get the correct and safe files, follow these steps: 1. Download via Official Support

It looks like you're searching for specific firmware files to repair or update a TV (using the MS6486T PB753 Go to product viewer dialog for this item. motherboard with a 1920x1080 resolution).

Copy the file to the root of a FAT32 formatted USB drive.

Visit the Hisense Firmware Download page .