EXFO FTB-500 - Manual (Page 307)

Troubleshooting
FTB-500 299
Restoring Your Unit to Normal Operation
Restoring Your Unit to Normal Operation
If you ever encounter major problems with your unit (for example, the unit
does not behave the way it used to), you can revert it to a previous state.
You can revert your unit either to its initial state (as it was at time of
purchase), or to a specific state with a backup image (WIM file) created
previously.
Note: For current updates, use Update Manager.
You can create your own WIM files directly from your unit and store them
on a USB key for future use.
My module does not seem
to fit all the way inside the
unit and I cannot lock it in
place using the retaining
screw.
You are using an older
module with a rubber O ring
directly behind the
faceplate.
Remove the O ring simply by
pulling it away from the
module. The O ring will be
permanently removed, but
this does not affect the way
your module will perform.
Your module also remains
fully functional on the other
EXFO platforms
I
MPORTANT
The WIM files that you create are based on the serial number of
your unit. This means that the WIM files created on one unit are
only valid to restore this particular unit.
Problem Possible Cause Solution