# Updating Controller Software through USB

1. Connect the USB flash drive to the controller: the installation wizard starts automatically.

   If several software versions are available on the USB flash drive, a list with the different software upgrade files is displayed.

2. Select the software upgrade file to install and follow the instructions to finish the installation.

The USB flash drive needs to have a partition available and be formatted to work for Linux. Possible formats are for example FAT or NTFS.

Manually restart all Sync Member controllers after upgrading to a new software version or downgrading from a new software version.

Relevant Information

- StepSync