The use of any liquid to clean electronic devices is ill-advised. Liquids, even thicker liquids such as hand sanitizer, can easily penetrate through small cracks and crevices in the case and enter the interior of the device where they can cause permanent damage and electrical shorts.
Do not use rubbing alcohol, paper towels, compressed air, dish soap or vinegar. All of these can damage your phone: Paper towels can scratch your screen, and vinegar could damage its coating. Do not use hand sanitizer on your phone screen, but do sanitize your hands before touching your phone.
The best tools to use to clean your phone's charging port are in your home already: paper towels, cotton swabs, and toothpicks. An air compressor is another good tool to clean a charging port that's not working properly, but it's not always available.
Just don't spray your device with hand sanitizer. It might cause a short-circuit. “But isn't isopropyl alcohol non-conductive?”, you might ask. And it's true.
Hand Sanitizers are made with Glycerin. Glycerin is considered a "contaminate" for circuit boards. It can negatively affect circuit boards because it is Hygroscopic and can attract moisture to the Circuit.
Isopropyl alcohol removes oils, adhesives, fingerprints, soldering flux and other contaminants, making it ideal for cleaning electronics. However, it is important to note that only alcohol with a grade of 90% or more should be employed on circuit boards and other internal electronics.
As far as alcohol yes. The conductivity of isopropyl alcohol (which is commonly the major component of rubbing alcohol) is typically 6 μS. m−1, so it is very low (typical value for a metal would be multiple millions of S.m−1!).
Use a soft cotton swab to clean out your charging port. You can also try a bulb syringe to remove and loosen debris. According to Apple, don't use any abrasive cleaners like bleach or hydrogen peroxide. Avoid getting any moisture inside your phone as well.
You can also use this method if your iPhone or iPad is stuck in "headphone mode" even though no headphones are plugged in. The same method can also be used for cleaning out the charging port and headphone jacks on Android, Windows Phone, and BlackBerry devices.
You can clean it out with compressed air or a toothpick, but always be very careful. Never insert anything metallic in the iPhone's charging port, and do not get it wet.
The best way to clean a USB-C port is with a can of compressed air and a shaved toothpick. Blasting it with compressed air will shake loose dirt, which you can then clean out with the toothpick. If a USB-C port isn't working, or the cable won't fit anymore, it likely needs to be cleaned.
Rub some sanitizer into the bristles and let dry. Make glass surfaces shine even when you don't have glass cleaner. Remove paint stains, including from brushes. Remove scuff marks from your shoes.
Alcohol is also especially bad for phones because it contains water. If you use alcohol or an alcohol-based product and it seeps into your phone ports, water could short-circuit your device because of its conductivity. This could lead to malfunction or total hardware failure.
Alcohol Can Damage Your Phone
There's one more important reason why you shouldn't use alcohol or other liquid cleaning chemicals on your devices, and that's the oleophobic coating. This is the special coating on your phone's screen that prevents fingerprints, smudges, and scratches.
By far, the safest way to clean the USB port on your phone is with compressed air. Compressed air will loosen dust and blow out dirt without you needing to insert anything into the port.
No, you don't need any specific conductive gel. Most people use hand lotion, aloe vera gel, hand sanitizer gel, etc. Because the electrode part of the ear clips are metal, you just need something liquid to enable conducting comfortably between the ear clips and your ear.
Methanol or methyl alcohol, also known as wood alcohol, is used to make rocket fuel and antifreeze and is very toxic. Methanol should never be rubbed on your skin or swallowed. Swallowing or drinking hand sanitizers contaminated with methanol can cause serious health problems, including permanent blindness, and death.
In short … sanitizers reduce bacteria on a surface by at least 99.9%, disinfectants kill a wider range of microorganisms (than sanitizers), and cleaners simply remove dirt, soils and impurities from surfaces.
Last but not least, hand sanitizer can be used to clean away smudges on glass surfaces. Yes, this means your precious iPhone or computer screen can be smudge free with a simple spray and wipe.
One of hand sanitizer's many virtues is that it makes an excellent cleanser for your mirror and other glass surfaces, cleaning off all of these sources of spatter and many more. Just wipe it on with a paper towel or soft cloth, and then wipe it off again.
Please do not use hand sanitizers on your glasses as they will erode the lense or coating on your glasses. Use a proper lense cleaning solution to clean your glasses. Or put it under running water and use a clean micro fibre cloth to wipe it dry after washing it with normal soap.