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PROBLEM-DETECTION GUIDE
This section shows a list of solutions to the most commonly encountered
problems.
Detected problem
Root cause
Solution
All LEDs are unlit
GSM500 M2M not supplied
Check power supply
The red LED blinks
quickly
SIM card not present or not
correctly inserted
Correctly insert the SIM
card in the dedicated
location
SIM card locked by PIN
code
Disable the PIN code
through your mobile phone
SIM card expired or
damaged
Check the SIM card
operation on your mobile
phone
SIM card not supported
(e.g. UMTS)
Use a GSM SIM card
Make a test with a SIM
card from a different GSM
provider
Unconnected antenna or
damaged connection cable
Check the antenna
connection and the correct
operation of the cable
GSM signal absence
Check the signal strength
by your mobile phone
Insufficient power supply
Check the power supply
Generic SW problem
Switch off and back on
GSM500 M2M
The red LED blinks
slowly, but the green
LED is unlit
GSM signal level is too low
to allow outgoing calls
Move the GSM500 M2M
and the antenna into a
better position
Summary of Contents for GSM500 M2M
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