Multi-part RAR archives (like your part02.rar ) cannot be extracted on their own.
To successfully prepare and use the multi-part RAR file for your (Board: LDD.M538.B138 ), follow these steps to extract and prepare the firmware for a USB update. 1. Gather All Parts Multi-part RAR archives (like your part02
: Right-click on ...part01.rar and select "Extract Here" or "Extract to [Folder Name]" . Multi-part RAR archives (like your part02