With Nokia Diagnostics we can diagnose and solve many common errors in our Nokia 5800, 5520, 5230 or X6, by running various tests on the phone. It is an application at phase experimental.
Each text that passes will be marked on the main screen of your Nokia. The tests included are:
- Network Coverage test
- Internet connectivity test
- Battery charger test
- Loudspeaker
- Earpiece test
If it works it could be something sensational, no doubt 
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