EXFO FTB-500 User Manual
Page 306
Troubleshooting
298
FTB-500
Solving Common Problems
Even though my 3G USB
modem key is connected
and working properly, I
cannot send SMS (text
messages) with the Sierra
AirCard Watcher
application.
SMS is not supported on the
FTB-500 unit.
Use another device such as
a smarphone or a cell phone
to send text messages.
The GPS USB key is not
detected.
---
Disconnect the GPS key
from your unit, and try
connecting it again.
If the GPS key is still not
detected, try connecting it to
another USB port.
Batteries are not recharging. Ambient temperature is too
high or too low.
Make sure that the
temperature in the location
where you recharge the
batteries is within the
specifications
The AC adapter or the
power cord is not
connected properly.
Make sure that the AC
adapter or the power cord is
connected to the unit and
the AC outlet.
Battery indicator shows only
a fraction of the power is
left, but the batteries are
fully charged.
(You are able to operate
your unit, but the software
automatically blocks when it
reaches its set power
threshold).
Battery needs to be
recalibrated or changed.
Use the battery
calibration process
explained in
Recalibrating the
Batteries on page 278.
Batteries may be worn
out. In this case, change
the batteries
(see Replacing Batteries
Problem
Possible Cause
Solution