Earpiece Troubleshooting - Nokia 300 Service Manual

RM-781
BB Troubleshooting and Manual Tuning Guide
For a correct functionality of the phone, all sound holes must be always open. When the phone is used, care
must be taken not to close any of those holes with a hand or fingers. The phone should be dry and clean,
and no objects must be located in such a way that they close any of the holes.

Earpiece troubleshooting

Troubleshooting flow
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