Nokia 5800 XpressMusic (5800xm) is based on the Symbian S60 5th Edition system.
As 5800 xm is a S60 phone, so you can:
- tap *#92702689# to check if the phone is a new one.
- tap *#7370# to perform a master reset (default password: 12345).
- Go to Handango, Nokia Software Market, or SymbianGear to buy applications.
Talk volume issue: If you found the volume of the 5800xm unstable, it might be not related to software or reception - it's the hardware that caused the problem! To solve it you have to dissemble the phone and fasten the hardware. It is recommended that you go to Nokia for the dirty work, or demand for a replacement if necessary.
