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Problem: Unit will not turn on
Possible Cause:
Wiring was not connected properly
Battery needs charging
Problem: Unit will not respond to SMS
Possible Cause:
GSM antenna was not installed properly
GSM Network is slow
Unit is sleeping
Wrong password in your SMS or wrong
SMS format
The SIM in WT200B has run out of credit
No SIM card
SIM card has expired
SIM has PIN code set
SIM is warped or damaged
Roaming not enabled
Error connecting GSM antenna
Problem: SMS received starts with 'Last...'
Possible Cause:
Unit does not have clear view of the sky
WT200B is in an inner place
Battery is low
Error connecting GPS antenna
Problem: Unit Fails to Connect to Server via GPRS
Possible Cause:
SIM card in WT200B does not support
GPRS function
GPRS function of WT200B is turned off
Incorrect IP address or PORT
GSM signal is weak
7.Contacts
WT200B USER MANUAL
6. Troubleshooting
Resolution:
Check and make sure wiring connection is in order.
Recharge battery
Resolution:
Make WT200B connected to GSM network.
Some GSM networks slow down during peak time or when they
have equipment problems.
Cancel sleeping mode
Write correct password or SMS format
Replace or top up the SIM card
Insert a working SIM card. Check in phone that the SIM can send
SMS message.
Check in phone that the SIM can send SMS message. Replace
SIM card if needed.
Remove PIN code by inserting SIM in you phone and deleting the
code.
Inspect SIM, clean the contacts. If re-inserting does not help try
another to see if it will work.
If you are in a different country your SIM account must have
roaming enabled.
Make sure the GSM antenna is connected to the GSM interface.
Resolution:
Move the antenna of the unit to a location where the sky is visible.
Wait for the target to come out
Recharge the unit and the GPS will start working.
Make sure the GPS antenna is connected to the GPS interface.
Resolution:
Enable SIM card GPRS function.
Turn on GPRS function of WT200B.
Get the right IP address and PORT and reset to WT200B
Move the unit to a location with good GSM reception.
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