> ## Documentation Index > Fetch the complete documentation index at: https://docs.myzendo.com/llms.txt > Use this file to discover all available pages before exploring further. # Manage Wall Panels and Tablets > See which wall panels and tablets are online, and lock, change or remove one from your phone or tablet. ## Intro "Control Panels", in Settings, lists the wall panels and tablets in your [device groups](https://docs.myzendo.com/permanent-devices/device-groups.md). From your own phone or tablet, you can check that each one is working, and lock it, change its settings or remove it, without going to the device. For example, check that the panel at reception is still online, or lock the tablet in the hallway at home while you're away. *** ## What you can do Some of what "Control Panels" shows depends on whether an installer set up Zendo at your property. At any property, every admin can: * See the devices in each device group, and when each one was added. * See a device's ID. * See or change a device's [admin code](https://docs.myzendo.com/permanent-devices/securing-devices.md#forgot-the-admin-code), if your Home Assistant or Homey keeps a record of the device. * [Remove a device](#remove-a-device). If an installer set up Zendo at your property, you can also: * [See which devices are online](#see-which-devices-are-online), and each device's screen, battery and network. * [Lock or unlock a device](#lock-or-unlock-a-device). * [Change a device's settings](#change-a-devices-settings). * [Replace a device](https://docs.myzendo.com/permanent-devices/replace-device.md), so a new device takes its place in your automations. * Set up a wall panel's [buttons](https://docs.myzendo.com/permanent-devices/wall-panel-buttons.md). * [Copy a device's setup](https://docs.myzendo.com/permanent-devices/copy-setup.md), such as its buttons and widgets, to other devices. At any property, an automation can [tell you when a device goes offline](https://docs.myzendo.com/permanent-devices/automations.md#know-when-a-device-goes-offline), and [lock and unlock a device](https://docs.myzendo.com/permanent-devices/automations.md#lock-a-device). *** ## Open Control Panels 1. Tap 2. Tap "Settings" 3. Tap "Control Panels". The devices are grouped by device group, so you can see at a glance which devices are in which group. A device added in the last week also says when it was added, so you can spot a new one. If an installer set up Zendo at your property, a dot next to each device shows whether it's online: see [See which devices are online](#see-which-devices-are-online). Under the device groups is "Set Up via Link", for [adding a tablet with a link](https://docs.myzendo.com/permanent-devices/device-commissioning.md#use-a-setup-link-instead). To add a device, see [Add a Device](https://docs.myzendo.com/permanent-devices/device-commissioning.md). *** ## See which devices are online "Control Panels" shows whether each device is online, so you can spot one that's stopped working and fix it. > [!NOTE] > > Device status is available if an installer set up Zendo at your property. Without it, "Control Panels" shows no dots. > > At any property, an automation can [tell you when a device goes offline](https://docs.myzendo.com/permanent-devices/automations.md#know-when-a-device-goes-offline). A dot before each device's details shows its status: * **Green dot**: the device is online. * **Grey dot**: the device is offline. It has stopped reporting to Home Assistant/Homey, for example because it's switched off, it's lost its Wi-Fi connection, or the Zendo app on it has stopped. * **No dot**: Zendo isn't checking the device, because **Always-On Display** is off on it. Zendo checks a device through [Always-On Display](https://docs.myzendo.com/permanent-devices/configure-zendo.md): a device with it on reports to Home Assistant/Homey every minute. A device shows as offline once Home Assistant/Homey hasn't heard from it for three minutes, so the grey dot can take up to four minutes to appear. The dots update while "Control Panels" is open, so you can watch a device come back online after you restart it. *** ## Check a device's details Tap a device in "Control Panels" to see more about it. Under the device's name and model: * **Status**: "Online" with a green dot, or "Offline" with a grey dot and when the device was last seen. A device with **Always-On Display** off shows "Not monitored". * **Device Lock**: while the device is online, "Locked" or "Unlocked". Tap it to lock the device with a PIN, or to unlock it. See [Lock or unlock a device](#lock-or-unlock-a-device). * **Screen**: while the device is online, "Awake" or "Screensaver". While it says "Screensaver", tap it to wake the device's screen. * **Battery**: on a tablet that's online, the battery level, with "Charging" or "Plugged in" under it while the tablet is plugged in. Wall panels run on mains power, so they don't show it. * **About**: tap it to see the operating system and the Zendo app version, then the device ID and when the device was added. The device ID and when it was added show for every device in a device group, even when the status doesn't. * **Network**: tap it to see the Wi-Fi network's name, its signal strength, and the IP address. A device that's "Not monitored" has no "Network". * **Device Settings**: tap it to change the device's own settings from your phone or tablet, such as its brightness, screensaver and language. See [Change a device's settings](#change-a-devices-settings). * **Admin Code**: "On" or "Off". Tap it to see the device's [admin code](https://docs.myzendo.com/permanent-devices/securing-devices.md#forgot-the-admin-code), set a new one, or turn it off. Every admin can do this, if your Home Assistant or Homey keeps a record of the device. * **Delete Device**: at the bottom, to [remove the device](#remove-a-device). When a device is offline, "Network" shows the Wi-Fi network and IP address it reported the last time it was online. In place of the signal strength, it shows when the device was last seen. The Wi-Fi network and signal show when the device can read them. On Android, the network's name needs location access for Zendo. iPads and iPhones don't report the Wi-Fi signal. > [!TIP] > > Press and hold the IP address or the device ID to copy it to the clipboard. To have a new device take an old device's place in your automations, tap the new device, then "Replace a Device". See [Replace a Device](https://docs.myzendo.com/permanent-devices/replace-device.md). On a wall panel with buttons, "Configure Buttons" sets what each button does. See [Wall Panel Buttons](https://docs.myzendo.com/permanent-devices/wall-panel-buttons.md). On a tablet or a wall panel, "Configure Widgets" chooses the widgets it shows beside the floorplan and the Tiles view. See [Widgets](https://docs.myzendo.com/permanent-devices/widgets.md). To give other devices the same buttons and widgets as this one, tap "Copy Setup to Other Devices". See [Copy Setup to Other Devices](https://docs.myzendo.com/permanent-devices/copy-setup.md). *** ## Lock or unlock a device Lock a wall panel or tablet from your own phone or tablet, so nobody can use Zendo on it until someone types the PIN. For example, lock the panel at reception when the office closes, or the tablet in the hallway at home while you're away. "Device Lock" shows while the device is online, if an installer set up Zendo at your property. At any property, an automation can [lock and unlock a device](https://docs.myzendo.com/permanent-devices/automations.md#lock-a-device) too. The PIN covers the whole screen. To protect only Settings on the device, use an [admin code](https://docs.myzendo.com/permanent-devices/securing-devices.md#admin-code) instead. ### Lock a device 1. Tap 2. Tap "Settings" 3. Tap "Control Panels" 4. Under its device group, tap the device 5. Tap "Device Lock" 6. Tap "Lock Device" 7. Choose the PIN length: 4, 6 or 8 digits 8. Enter the PIN, then enter it again. ### Unlock a device 1. In "Control Panels", tap the device 2. Tap "Device Lock" 3. Tap "Unlock Device", then tap "Unlock" to confirm. Anyone at the device can then use Zendo again without the PIN. *** ## Change a device's settings Change a wall panel's or tablet's own settings from your phone or tablet, without going to the device. For example, lower the brightness of the tablet in the hallway at home, or change the screensaver of the panel at reception from your desk. > [!NOTE] > > "Device Settings" is available if an installer set up Zendo at your property. It shows while the device is online, has **Always-On Display** on and has the latest version of Zendo. On a wall panel, Always-On Display is always on. 1. Tap 2. Tap "Settings" 3. Tap "Control Panels" 4. Under its device group, tap the device 5. Tap "Device Settings". You'll see the same settings as in "Device Settings" on the device itself. Only the settings the device has are shown. For example, **Auto-Brightness** shows only on a wall panel with a working light sensor, **Screen Rotation** only where the panel lets Zendo turn its screen, and **Volume** only on a wall panel. Each change applies on the device straight away. If the device can't make a change, the setting goes back to what it was, and an alert says why. *** ## Remove a device Remove a device you've replaced or no longer use: 1. Tap 2. Tap "Settings" 3. Tap "Control Panels" 4. Under the device group, tap the device 5. Tap "Delete Device". A deleted device is deactivated straight away, and the app on it stops working. If it had **Always-On Display** on, it stays in Home Assistant/Homey, offline. If an installer set up Zendo at your property, a new device can still [replace it](https://docs.myzendo.com/permanent-devices/replace-device.md) in your automations. To move a device to another device group, remove it, then add it again. See [Move a device to another group](https://docs.myzendo.com/permanent-devices/device-groups.md#move-a-device-to-another-group). If a device is lost or stolen, there's more to do than remove it. See [If a wall panel or tablet is stolen](https://docs.myzendo.com/permanent-devices/securing-devices.md#if-a-wall-panel-or-tablet-is-stolen). This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.