Carscop 202005, Manual, Page: 3 / 18

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2. LED Indicator: (Flash Cycle Time: 4 seconds)
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RED LED ON continuously : T-Box searching 2/3/4G network;

RED LED OFF continuously : T-Box power off;

RED LED Flash once : Internet OK, GPS OK;
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RED LED Flash twice : Internet OK, No GPS Signal;
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RED LED Flash 3 times : No Internet, GPS OK; (APN or Server Error)
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RED LED Flash 4 times : No Internet, No GPS Signal; (APN or Server Error);
3. Before Using:
3.1. At first to buy a 4G LTE / 3G WCDMA / 2G GSM SIM card which have SMS service
& internet data service, normally it need about 30M data per month according the different
working mode, recommended order a internet data plan for the SIM card. (Note: Most M2M SIM
Card have not voice & sms function, this kind of M2M SIM card can not use SMS control),Some
SIM card need to send SMS or USSD command to enable the data service, the detail please see
the SIM card manual or call the SIM card service hotline.
3.2. Install SIM Card
Behind the main control box, the SIM card holder can be seen, press the yellow switch
button with a tool and then the holder will come out. Pull it out and put the SIM card in the holder
and then push the holder into the T-Box again (Pay attention to that the SIM card metal contact
pin can not face down to the holder)