If you are downloading "part06.rar," ensure you have (part01 through part05, etc.) in the same folder before extracting. The extraction will fail if any part of the sequence is missing.
: For some smart models, Haier's SmartHQ app can push critical software and performance updates to connected appliances. Important Note on Multi-part Files Download Haier LE40U5000A Software part06 rar
If you are looking for this file to fix a software issue, Haier recommends using built-in update tools if the TV is still functional: If you are downloading "part06