Electronic device and method for controlling electronic device

An electronic device comprising:

• a submersion detector configured to detect submersion of the electronic device and detect retrieval of the electronic device, wherein the submersion means that the electronic device itself falls onto a surface of water or into water, and the retrieval means that the electronic device itself is retrieved from the surface of the water or from under the water;
• an orientation detector configured to detect a plurality of submersion orientations of the electronic device;
• a plurality of illuminants, at least one of the illuminants corresponding to one of the submersion orientations to be detected by the orientation detector and being disposed in the electronic device such as to be visible from above a surface of water when the electronic device is submerged in the corresponding submersion orientation;
• a lighting circuit;
• and
• a controller configured to operate the lighting circuit to light up the at least one of the illuminants for a period of time from detection of the submersion of the electronic device at least to detection of the retrieval of the electronic device by the submersion detector, wherein the at least one of the illuminants corresponds to the submersion orientation of the electronic device detected by the orientation detector.

A method of controlling an electronic device, comprising:

• operating a submersion detector to detect submersion of the electronic device and to detect retrieval of the electronic device;
• operating an orientation detector to detect a submersion orientation of the electronic device;
• and
• operating a controller to send a lighting circuit a lighting signal to light up at least one of illuminants provided in a casing for a period of time from the submersion of the electronic device at least to the retrieval of the electronic device,
• wherein the operating of the controller to send the lighting signal includes operating the controller to send, in accordance with the detected submersion orientation of the electronic device, to the lighting circuit a lighting signal to light up only the at least one of the illuminants that is visible from above a surface of water in the submersion orientation.