Troubleshooting - Concox TR02 Bedienungsanleitung

6. Troubleshooting

If you are having trouble with your TR02, try these troubleshooting procedures
before contacting a service professional.
Problems
Red LED does
not work when
The fuse blows
power
connected
Wrong installation of SIM
card
Filth on the SIM card iron
surface.
Useless SIM
Fail to connect
network
Improper installation
Beyond GSM service area
Bad signal
The voltage is unsuitable
Fail to
charge
Improper connection
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Technology Co., Ltd.
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Causes Solutions
Replace the fuse
Check SIM card installation
( 4.1 Install SIM card)
Clean it
Contact internet service
provider
Check installation of device
( 4.4 Install the device)
Use it in effective GSM
service offer area
Try again in a better signal
area
Connect with power with
suitable voltage
Check connection with
charger