Plug the USB drive into the TV's USB port (use USB 2.0 if available).
To download and use the firmware split into RAR parts (like part03.rar ), you must ensure you have all corresponding parts before attempting to extract or install them. This motherboard is a common 4K three-in-one smart board used in several Mitashi and Chinese-manufactured LED TVs. 1. Downloading and Extracting the Files Download MS638 PC822 3840x2160 Mitashi Ref65 part03 rar
Use a high-quality USB pen drive (8GB or 16GB is usually sufficient) and format it to FAT32 . Plug the USB drive into the TV's USB port (use USB 2
Right-click on Part 1 and select "Extract Here." The extraction tool (like WinRAR or 7-Zip) will automatically pull data from the subsequent parts (including part03) to recreate the single original firmware file, which is typically a .bin or .img file. 2. Preparing the USB Drive Download MS638 PC822 3840x2160 Mitashi Ref65 part03 rar
Move the extracted firmware file (e.g., allupgrade_ms638_4G_1G.bin ) to the root directory of the USB drive. Do not put it inside any folders. 3. Installation Guide (Flashing)
Release the power button when you see a "Software Updating" or "Do Not Power Off" screen.