Status LEDs
The MD300 contains
LED color | Flash rate | Description |
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Red | Fast | Searching for a mobile network |
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Green | Medium | Registered to GPRS or EDGE service, not connected |
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Green | Slow | Connected - GPRS or EDGE service |
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Blue | Medium | Registered to UMTS or HSDPA service, not connected |
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Blue | Slow | Connected - UMTS or HSDPA service |
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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.
Overview3