If you need to recover the 81150A / 81160A from an interrupted software
update, you need to do the following in addition:
1. Copy the software update zip file on the USB flash drive’s
root directory.
2. Extract the content of the software update zip file to the
root directory of the USB flash drive. Remember to
maintain the folder structure in the zip file when doing
this.
3. Connect the USB flash drive to the 81150A / 81160A and
switch the instrument on.
4. The 81150A / 81160A will now boot the recovery image
from the USB flash drive and continue to update the
instrument firmware.