Brush the pins again to remove any left over debris.
Cleaning brass electrical contacts.
Use vinegar to clean the pins if contact cleaner is not available.
Try cleaning the contacts with a micro brush and contact cleaning solution if it s not too dirty.
Step 3 use an eraser.
Copper contacts can also become dirty with black scuff marks if the contacts have something inserted and removed on a regular basis.
In this video i ll show you a quick way to clean your electrical contacts and connections.
Continue to scrub the copper contacts until the head of the cotton swab is black.
You can t clean an electrical contact with water but there are some products that are safe and effective.
Do not use sandpaper or wire brushes to clean contacts.
Oxidation of metal parts because of humidity and old leaking batteries is a common cause of corrosion.
Apply a quick spray of the electrical contact cleaner to remove any dry dust or corrosion.
Apply a spray coating of the contact lubricant.
This is especially the case with cartridge video games.
Use as many swabs as you need to get them clean.
Dirty or corroded contact.