Electrostatic discharge
A discharge of static electricity from a finger or a conductor may cause erroneous functions in electrical devices. The discharge
may result in distorted display and unstable software operation. Wireless connections may become unreliable, data may become
corrupted, and transmission halted. In this case you need to end the existing call (if any), switch off the device (if on) and remove
the battery. Then replace the battery and establish a new wireless connection.