For mild dirt, apply isopropyl alcohol to a microfiber cloth or cotton swab and gently wipe the connector's surface. This blog post will provide a step-by-step guide to cleaning electronic connectors safely and effectively, while also covering essential tools, techniques, and precautions. Maintaining. It's important to keep your electrical connectors clean and free from dirty and grease. more Audio tracks for some languages were automatically generated. When connector pins are contaminated, the flow of signals and power can be disrupted, causing erratic behavior in electronic devices. This can manifest as flickering. You'll learn the steps for clean pin removal, proper reinstallation, and long-lasting connections.