# Updating Controller Software through Web GUI

1. Access to the Web GUI by connecting a PC with a straight-through Ethernet cable (RJ45) to the Service Ethernet port. Access the controller with the IP address from a web browser.

2. On the home view of the Web GUI, go to the Controller tab, select Software on the left pane and then go to the Software update window and select Browse.

3. Browse and choose the .zip file with the software and follow the instructions to complete the installation.

For synchronized tightening, manually restart all Sync Member controllers after upgrading to a new software version or downgrading from a new software version.

If the controller application fails to start repeatedly the controller will boot up in rescue mode. In rescue mode a new firmware can be installed. The rescue image is distributed with the software update and can be updated if a newer rescue image exists.

Do not power off the system during rescue image update. The system will reboot when starting the update.