Ericsson GF 768 Troubleshooting Manual page 45

4/00021-2/FEA 209 544/6 C Troubleshooting guide
Fig. 9.4
9.4 Both the earphone and the microphone of the phone out of order.
Open the phone and check for water damages.
Make especially sure there's no dirt or oxide between the components below the dome foil (fig. 9.5) and at the
system connector pads.
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