4.  Press the “Start Now” (F1) key. The 
oscilloscope will automatically start upgrading 
the firmware. Or press the “Cancel” (F3) key to 
quit the firmware upgrading procedure. 
 
 
5.  When the status indicator shows the complete 
status (status indicator in yellow completely) 
and a message of “Update NAND flash 
success” will appear on the top of status 
indicator. The firmware upgrading procedure is 
completed. 
 
6.  Restart the oscilloscope manually. 
Check the firmware version by pressing the 
“Utility” “System” “System Info”. The 
system information screen that it is being 
updated.