Microsoft: Manage a Mobile / Exchange ActiveSync Device

<< Method 1 - Exchange Management Console ( EMC ) >>
1. In the console tree, navigate to Recipient Configuration > Mailbox.
2. Select a mailbox and then, in the action pane, click Manage Mobile Device to open the Manage Mobile Device wizard.
   - This wizard helps you view mobile phones associated with a user's mailbox and remove a mobile phone from a user's mailbox. To remove a mobile phone from a user's mailbox, select the mobile phone, and then click Remove Device.
3. On the Completion page, confirm whether the mobile phone has been removed from the user's mailbox.
   - A status of Completed indicates that the wizard completed the task successfully.
   - A status of Failed indicates that the task wasn't completed. If the task fails, review the summary for an explanation, and then click Back to make any configuration changes.
4. Click Finish to complete the Manage Mobile Device wizard.

<< Method 2 - Outlook Web App ( OWA ) >>
1. Log into OWA.
2. Click the gear icon on the upper right, and then click Options.
3. Click Phone on the left, and select the mobile devices heading.
4. You can see details about each device, including its type and the first and last times the device was synchronized.
5. Using the "Mobile Devices" screen in OWA, you may end an ActiveSync partnership with a mobile device, wipe all the data from a device, or gain access to a device for which you have lost the password. If multiple devices are associated with your account, highlight the device you wish to modify before clicking the desired feature.

<< Method 3 - Exchange Powershell >>
Type in the commands below:
Remove-ActiveSyncDevice -Identity device_name
* Note: Change the device_name to the respective device name