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
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).
Use the Firmware Request form if you can't find your model listed.
Select both parts and extract them to get the main software file (usually ending in .bin or .pkg ).
To ensure you get the correct and safe files, follow these steps: 1. Download via Official Support
Copy the file to the root of a FAT32 formatted USB drive.
If the automated search fails, email Hisense support with your model and serial number to receive a direct download link or a USB update. 2. Community Repair Sites (Third-Party)