Settings134● Device administrators: View the administrators youhave approved for your device. You can allow deviceadministrators to apply new policies to your device.● Unknown sources: Set the device to install applicationsdownloaded from any source. If you do not select thisoption, you can install only applications downloaded fromPlay Store.● Trusted credentials: Set to use certificates and credentialsto ensure the secure use of applications.● Install from device storage: Install encrypted certificatesthat are saved in the device’s USB storage.● Clear credentials: Delete credentials from the device andreset the password.Customised keysAssign an application to [ ] to create a shortcut. You canlaunch the application by pressing [ ]. ► p. 36Language and inputChange the settings for languages and text input.› LanguageSelect a display language.› DefaultSelect a text input method.