Ensure you have downloaded all segments of the REF56 archive. Place them all in one dedicated folder on your computer. 2. Extract and Combine the Files
Right-click only on Part 1 ( part01.rar ) and select "Extract Here" or "Extract to [Folder Name]" . WinRAR will automatically pull the data from part02.rar and any subsequent parts to recreate the original firmware file.
You do not need a special "merging" tool; standard extraction software handles this automatically.
You cannot extract or "piece together" the firmware with only part02.rar . A multi-part archive requires (e.g., part01.rar , part02.rar , etc.) to be present in the same folder.
Right-click Part 1 , go to the 7-Zip menu, and select "Extract Here" . 3. Identify the Output
To assemble the firmware for your (Mainboard MT5510S PB803 , resolution 1366x768 ), follow these steps to combine the multi-part RAR files into a single usable file. 1. Download All Required Parts