Keysight E4990A Installation Manual page 27

Troubleshooting
System Recovery
Step 10. Once the recovery process is completed, completion message prompts. Click
OK. The E4990A restarts automatically.
Figure 2-5 Recovery completion dialog box
Step 11. After the restart, execute initial registration. For information on the execution
procedure, refer to
Never turn OFF the power during the system recovery because doing so
may cause serious damage to the E4990A.
Keysight E4990A Impedance Analyzer
"Initial Registration of E4990A" on page 22.
27