SunTech ST3940, User Manual

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Doc. Title
ST3940 User Manual
Concerning: Rev. Date (dd-mm-yy) Page of Pages
Features and how to configure ST3940
1.06
0
18-6-19 16 of 54
Blue& Red
LEDs
(2 colors)
GSM/UMTS network & Operating Status indicator
Number of blinking indicates following state :

Network OK: 1 time

Server communication Error : 2 times

GPRS/HSPA Communication Error : 3 times

No GSM/UMTS (= not connected with the GSM/UMTS network): 4 times.

SIM PIN Locked : 5 times

Impossible to connect with the GSM/UMTS network : 6 times

No SIM Error (= an error when SIM is not available) : 7 times

SIM PUK Locked : 8 times
If only red LED is blinking when power key is pressed shortly, this means following state :

1 time of blinking means

status of Power Off

2 times of blinking mean

status of hibernation

3 times of blinking mean

status of Power Off and battery discharged. It means that
it is time to charge the battery
Battery LEDs
(3 colors)
Battery indicator
Number of blinking indicates following state :

Red LED blinks twice shortly.

under 10% of the full capacity

Red LED blinks.

under30% of the full capacity.

Orange LED blinks.

30% to80%

Green LED blinks.

Almost charged

Green LED is on.

Charging has been completed.
During the charging time, the battery LED blinks continuously. But, the battery LED is turned
on when charging the battery is completed.
Protocol
Watchdog
If the PDP or GPRS/HSPA connection keeps going invalid status for a while about 40 minutes
up to 1 hour, then the device will be reboot and recover the data communication in case that
the problem was not caused by the network side.