## Firmware Update

Upgrade versions of the analyzer firmware are supplied as single setup files *.msi. To perform a firmware update

1. Copy the setup file to any storage medium accessible from the analyzer. This may be the internal hard disk, an external storage medium (USB memory stick, CD-ROM with external drive) or a network connection (LAN, GPIB bus).

2. Double-click the setup file (or use the front panel keys to select and start the setup file; see Using Front Panel Keys
   ) and follow the instructions of the setup wizard.

Setup files can be stored and installed again. The default drive name of the internal hard disk is C:. External storage devices are automatically mapped to the next free drive, i.e. D:, E: etc.

| Attention! The Calibration Unit (accessory R&S ZV-Z51/-Z52 or R&S ZV-Z58) must be disconnected during a firmware update.