SONY WH-CH700N bluetooth headphones USB charging port Replacement

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Desolder the USB connector

Grab the connector with tweezers and apply heat from the mounting pins' side (bottom).
Be careful with the hot air station and position the board in a way that you do not burn the jack connector while heating up the port.
320 degrees (Celsius) with 20-30% airflow is more than enough to get the connector off.
Clean the pads with a solder wick.

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