Original-Beitrag von: DanielAdvancedDeviceRepair

Original-Beitrag von::

Bex bw-100 electrical contact cleaner is a good option as well as 91% or higher isopropyl alcohol.

Oxo makes a slicone cleaning tool with a blade like nib and a brush that I highly recommend

Qtips are also a valid option

If there is any tough corrosion you can GENTLY pick and scrape at it with ifixit's sharp tweezers.

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open