Cautions; Troubleshooting - Coban BN-311 User Manual

Tracker response: begin ok
Example: begin123456

7. CAUTIONS

Please be sure to follow when using:
1. Keep the tracker used in a dry environment. The humid environment can easily
damage internal circuits.
2. Please do not put it in a dusty environment.
3. Do not put the tracker in overheated or overcooled places.
4. Handle carefully. Don't vibrate or shake it violently.
5. Please clean with a dry cloth, do not use chemicals and detergents.
6. Please do not paint the device; this may lead to internal circuit failure.
7. Do not disassemble the device.
8. Please read the user manual carefully before installation and operation, and understand
voltage range. Otherwise, it won't work properly or damage the tracker.

8. Troubleshooting

Faults Solution
1. Please check if the power wiring is correct?
Fail to turn on
2. Please check if the power voltage is correct?
1. Check whether the SIM card is put in place
2. Whether the SIM card is a GSM network SIM card
No GSM signal
3. Don't turn on the PIN code
4. Call forwarding cannot be opened.
The device needs to be in an unobstructed position to ensure that it
No GPS signal
can receive GPS signals normally.
No response for 1. No credit on SIM card.
SMS command 2.
1. Did you have set up the authorized phone number?
No response for a
2. If authorized number exists, did you make the call from an
call
31
The format of the SMS command is incorrect.
authorized phone number?