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跳到步骤#2

Krishan Patel编辑

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步骤行

+[* black] The headphone jack is shown with a red ring.
+[* black] Apply gentle pressure to the 2 areas marked in blue with your finger.
+[* black] This pressure slightly flexes the area and may cause poorly soldered pins to re contact.
+[* black] If the sound returns and the red light turns off the issue is likely caused by a poor solder connection on the board.

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