This guide provides the procedure and precautions for upgrading firmware on specific AKW 2019 AV receiver models using a USB memory device.
This document describes the procedure and precautions for upgrading the firmware of selected 2019 AV receivers. It covers downloading files, creating update media, checking current versions, and performing the update process safely.
The guide details specific target models including the KW-V250BT series and KW-V350BT, along with their corresponding firmware version requirements and file names. Users are instructed to use a blank USB memory formatted in FAT 16/32 to copy the decompressed updater files before initiating the update via the unit's System Information menu.
The USB memory must use the FAT 16/32 file system.
The update procedure takes about 5 minutes.
You must update the firmware again.