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Mini-MT User Guide
Revision 1.02
GSM2228UG001 Page 6
4.1 LED Indicators
There are four LED’s used to provide status to the user. See Figure 2 for LED
information. The LED functions are defined in the table below.
Power Mode CALL ON GPS BAT
Yellow Yellow Yellow Red
Hibernate OFF OFF
OFF Low Battery,
less than 20%
Slow Blink
250mS/10Sec
Low Battery,
less than 5%
OFF
Active / Battery Blink when
receiving or
originating call
500mS/1 Sec
Blink for
missed call
2 Sec/2 Sec
Solid during
call
Slow blink
500mS/10Sec
Blink when
locked
500mS/2 Sec
Low Battery,
less than 20%
Slow Blink
250mS/10Sec
Low Battery,
5% or less, or
turns OFF
Active / Aux Blink when
receiving or
originating call
500mS/1 Sec
Blink for
missed call
2 Sec/2 Sec
Solid during
call
ON solid Blink when
locked
500mS/2 Sec
Fast Blink,
during charge
500mS/2 Sec
OFF when
charged
NOTE: When upgrading the firmware on the Mini-MT the LED’s will blink.