Use a high-quality USB pen drive (8GB or 16GB is usually sufficient) and format it to FAT32 .
Place all downloaded RAR parts in the same folder on your computer. Download MS638 PC822 3840x2160 Mitashi Ref65 part03 rar
You cannot open part03.rar alone. You must download part01.rar , part02.rar , and all other numbered parts in the sequence. These files are often hosted on technician forums or specialized sites like Advance Electronics Butwal . Use a high-quality USB pen drive (8GB or
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 You must download part01
The TV will reboot automatically once the process reaches 100%. Unplug the USB drive immediately after it reboots.
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)
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