A user complains that he can no longer see any wireless networks, connect to his bluetooth headset, or make phone calls on his Android phone. Which of the following options would best address these issues?
Try using the phone outdoors
Ensure the phone is not overheating
Correct Incorrect Unanswered
Answer Description
These symptoms describe a phone that is in airplane mode. The best option available would be to disable airplane mode. On most smart phones you could also re-enable WiFi and keep Airplane mode.
Wikipedia
Airplane mode (also known as aeroplane mode, flight mode, offline mode, or standalone mode) is a setting available on smartphones and other portable devices. When activated, this mode suspends the device's radio-frequency (RF) signal transmission technologies (i.e., Bluetooth, telephony and Wi-Fi), effectively disabling all analog voice, and digital data services, when implemented correctly by the electronic device software author.
The mode is so named because most airlines prohibit the use of equipment that transmit RF signals while in flight. Typically, it is not possible to make phone calls or send messages in airplane mode, but some smartphones allow calls to emergency services. Most devices allow continued use of email clients and other mobile apps to write text or email messages. Messages are stored in memory to transmit later, once airplane mode is disabled.
Wi-Fi and Bluetooth can be enabled separately while the device is in a pseudo-airplane mode, as allowed by the operator of the aircraft. Receiving RF signals (as by radio receivers and satellite navigation services) may not be inhibited by airplane mode; however, both transmitters and receivers are needed to receive calls and messages, even when not responding to them.
Since a device's transmitters are shut down when in airplane mode, the mode reduces power consumption and increases battery life.
Airplane_mode - Wikipedia, the free encyclopedia 