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S I E M E N S
P T E L T D
ST55 Level 2 Service Manual
3
Key Features
Frequency Bands
Power
Battery
Stand-by Time
Talk Time
Charging
SIM Card
Message
Display
Camera Sensor
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ICM MP CCQ SLI RHQ
• EGSM 900/GSM 1800/GSM 1900
• EGSM 900 : Power Class 4
• GSM 1800 : Power Class 1
• GSM 1900 : Power Class 1
• Li-ion Battery Pack
• Nominal Voltage : 3.7V
• Nominal Capacity : 780mAh
• Min 140 hrs (actual time depends on the network)
• Best case : min 3.8 hours (DTX off, GSM 900, PL19)
• Best case : min 4.5 hours (DTX on 40% GSM 900,Pl19)
(Actual time depends on the network)
Max charge time for empty battery (0-5% capacity) is 2.5 hrs for
standard charger and via battery charging station.
• Plug In card 3V
• SIM application Tool Kit
Class II and III Send USSD command
SMS, EMS, MMS Support
• Backlight LED – LCD
• LCD: 1.89" TFD module
120 x 160 pixel
16 bit (65536) colours
• Focus Range: 50 cm ~
• Preview Mode: SUBQCIF 128 x 98
4 of 25
: White
Keypad: Blue
Siemens Technical Support Centre
Internal Use Only
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