KEF LS50 WirelessRequirement for firmware update:a) Window 7/8/10 64bit/32bit.b) The computer must be connected to the Internet.c) Disable firewall/Antivirus if necessary.d) The speaker must be in Wi-Fi mode and connected to the internet.e) Make sure the update is under a stable network. The process may take up to 10 minutes.Procedures:1) Download the software update installer to your PC.2) Run by double clicking the installer.3) Connect left and right speakers.

KEF LS50 Wireless Requirement For Firmware Update