Sony Ericsson Radio Communications - Popular Questions, Answers, Tips & Manuals
Sony Ericson 250i Headset not recognised
The wire to headsets can get damaged (usually not visible from the outside, as the wires inside the covering can be very delicate, to keep the size of the wire down) from throwing them in the pocket, purse, etc. Try a set from a friend to make sure the device is still working itself.
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I have sony erricson ds220
Phone: Turn on Bluetooth and Bluetooth visibility. Keep it close to the headset (20 cm).2. Headset: Switch it off. Press and hold down the on/off key until the pairing icon appears on the display.3. Phone: If your phone supports auto pairing, press YES when Add device? appears to complete the procedure. If not, continue with the next step.4. Phone: Follow the applicable User guide to pair with a Bluetooth headset. You may need to enter a headset passcode (0000).
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Phone not recognising sim card. Window pops up which says 'insert sim card or to view a demo of this phone first press Demo"
Sim contacts may be dirty, either on the card or phone.
remove sim card and GENTLY rub a pencil eraser on the contacts to clean, then test. If you can access the contacts on the phone, do likewise. If not, then you'll have to use an Ether based cleaner, Like electrical parts spray ( available from your local auto parts store) .
be careful not to spray too much into the phone, as once the spray gets inside it takes longer to evaporate. You can counter the time by using compressed air to speed drying of the phone interior without taking it apart.
Hope this helps!!
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