230ApplicationsThis phone can be used for Android development. You can writeapplications in the SDK and install them on this device, then runthe applications using the hardware, system, and network. Thisfeature allows you to configure the device for development.Warning!: Android Dev Phones are not intended for non-developerend-users. Because the device can be configured with systemsoftware not provided by or supported by Google or any othercompany, end-users operate these devices at their own risk.Unknown SourcesBefore you can download a web application you must enable theUnknown sources feature (enables downloading). Developers canuse this option to install non-Market applications.1. Press ➔ and then tap (Settings) ➔Applications.2. Tap Unknown sources to active this feature.Note: If you are notified that you can not download a Market applicationbecause it comes from an “Unknown source”, enabling this optioncorrects this issue.Managing ApplicationsThis feature allows you to manage installed applications. You canview and control currently running services, or use the device forapplication development.You can also view the amount of memory or resources used aswell as the remaining memory and resources for each of theapplications on your phone and clear the data, cache, or defaults. Press ➔ and then tap (Settings) ➔Applications ➔ Manage applications.Clearing Application Cache and DataImportant!: You must have downloaded applications installed to use thisfeature.1. Press ➔ and then tap (Settings) ➔Applications ➔ Manage applications.2. Tap an application in which to clear the cache or data.3. Tap Force stop, Clear data, or Clear cache.