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Overview 3
Status LEDs
The MD300 contains multi-colored LEDs that indicate the status of the device.
The LEDs illuminate around the Sony Ericsson logo, as shown below.
SIM Card
When you subscribe to a mobile network, you are issued a Subscriber Identity Module (SIM) card.
Your SIM card contains your personal subscriber data. To connect to a mobile network you must
first insert your SIM card that includes the appropriate network subscription into your MD300.
To insert the SIM card
The SIM card slot is spring loaded and the SIM card will click into place when properly inserted.
Insert the SIM card into the slot next to the USB connector of the MD300. Make sure the gold
contacts on the SIM card are facing towards the USB connector and the angled corner of the SIM
card is placed into the MD300 as shown. Push the SIM card into the MD300 until it clicks.
Note:
The SIM card will not click in place if it is inserted incorrectly.
LED color Flash rate Description
Red Fast Searching for a mobile network
Green Medium Registered to GPRS or EDGE service, not connected
Green Slow Connected - GPRS or EDGE service
Blue Medium Registered to UMTS or HSDPA service, not connected
Blue Slow Connected - UMTS or HSDPA service