HTC One E8 - Manual (Page 171)

Settings and security
Airplane mode
When you enable Airplane (Flight) mode, all wireless radios on HTC One (E8) are turned off,
including the call function, data services, Bluetooth, and Wi-Fi.
When you disable Airplane mode, the call function is turned back on and the previous state of
Bluetooth and Wi-Fi is restored.
§ You can manually turn Bluetooth and Wi-Fi back on after enabling Airplane mode.
§ If USB tethering is turned on, enabling Airplane mode turns it off. You need to manually turn
USB tethering on after you disable Airplane mode.
Do any of the following to turn Airplane mode on or off:
§ Press and hold POWER, and then tap Airplane mode.
§ With two fingers, swipe down from the status bar to open the Quick Settings panel. Tap the
Airplane mode tile to turn airplane mode on or off.
When enabled, the Airplane mode icon is displayed in the status bar.
Scheduling when to turn data connection off
To help conserve power and data usage, you can set a time period when the data connection will
automatically turn off during low peak times. This takes effect after the screen has been off for 15
minutes and there's no network activity (no downloads, streaming, or data usage).
1. Go to Settings, and then tap Power.
2. Tap Sleep mode.
3. To manually change the settings, clear Learn sleep time automatically if it's selected.
4. Under Sleep time, choose the start and end time when data connection is disabled.
5. Tap the Sleep mode On/Off switch to turn it on.
The data connection resumes when you switch the screen back on.
171 Settings and security