Electrostatic discharge (ESD) can cause damage to electronic devices if discharged into the device. Static electricity is an electrical charge caused by the buildup of excess electrons on the surface of a material. Even a small amount of ESD can harm circuitry, so when working with electronic devices, take measures to help protect your electronic devices from ESD harm.
Any electronic device that contains an external entry point for plugging in anything from cables to docking stations is susceptible to ESD. Devices that you carry with you, such as your mobile phone, build up ESD in a unique way because the static electricity that builds up on your body is automatically passed to the device. Then, when the device is connected to another device such as a docking station, ESD discharge can occur.
Low relative humidity.
Material type. (The type of material gathering the charge. For example, synthetics are more prone to static buildup than natural fibers like cotton.)
The speed with which you touch, connect, or disconnect electronic devices.
While you should always take appropriate precautions to discharge static electricity, if you are in an environment where you notice ESD, you may want to take extra precautions to protect your electronic equipment against ESD.
Ground yourself when you are holding your mobile device by simultaneously touching a metal surface that is at earth ground. For example, if your computer has a metal case and is plugged into a standard three prong grounded outlet, touching the case should discharge the ESD on your body.
Increase the relative humidity of your environment.
Install ESD-specific prevention items, such as grounding mats.