Open the upgrade tool, select the correct COM port, and load the .bin file. Set the "Upgrade Type" to "Allcode" or "Dump" to ensure the entire flash is overwritten.
Unlike a standard firmware update, a "dump" is a complete 1:1 image of the receiver's flash memory. It is primarily used for:
Extract the Download Dump Echolink EL252 ALI3329 5815M.rar file to get the .bin firmware.