> ## 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.

# Replace a Device

> Replace a tablet or wall panel and keep your automations and settings as they were.

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## Intro

When you replace a tablet or wall panel, the new one takes the old one's place in Home Assistant/Homey. Every automation and flow that controlled the old device now controls the new one, so you don't need to change them. The new device also takes on the old device's settings, such as its brightness and language, and its admin code.

It's for always-on displays: the devices with [Always-On Display](/permanent-devices/configure-zendo) on, which Zendo registers with Home Assistant/Homey so your [automations](/permanent-devices/automations) can control them. You replace a device from ["Control Panels"](/permanent-devices/device-groups), on your phone or tablet.

<Note>
  Replace a Device is available if an installer set up Zendo at your property. Otherwise, [change your automations](/permanent-devices/automations#group-devices) to control the new device.
</Note>

***

## When you'll use it

Each always-on display is a device of its own in Home Assistant/Homey. When you set up a device on Zendo, it joins as a new device, even if it's the same tablet as before, so your automations don't control it yet. Replace the old device when:

* **A tablet breaks** and you set up a new one in its place, such as the tablet on the kitchen wall at home, or the one at reception in an office.
* **You upgrade a wall panel** to a newer model.
* **You reinstall the Zendo app**, for example after a crash, and set up the device again.

To check whether a device is offline, and when it was last seen, open it in ["Control Panels"](/permanent-devices/device-groups#see-which-devices-are-online).

***

## Replace a device

Set up the new device first:

1. [Add it to your Zendo](/permanent-devices/device-commissioning). Choose the same [device group](/permanent-devices/device-groups) as the old device, so it shows the same accessories, and automations and doorbell rings that target the group reach it.
2. [Turn on Always-On Display](/permanent-devices/configure-zendo#turn-on-always-on-display) on it. On a wall panel, it's always on.

Then, on your phone or tablet:

1. Tap <MenuButton />
2. Tap "Settings"
3. Tap "Control Panels"
4. Under its device group, tap the new device
5. Tap "Replace a Device"
6. Tap the old device in the list.
7. Tap "Replace", then confirm. If the old device is still online, Zendo asks once more: tap "Replace Anyway" to go ahead. See [Replace an online device](#replace-an-online-device).
8. Tap "Done".

The list shows the other devices in Home Assistant/Homey: offline devices first, then the most recently seen. Each one shows its name and model, and "Online", "Offline" or when it was last seen.

<Note>
  "Replace a Device" only shows if an installer set up Zendo at your property, the new device is in a device group, and the Zendo integration on your Home Assistant/Homey is up to date.
</Note>

### Keep the old name

The new device keeps its own name, and your automations work either way. To show the new device under the old device's name in Zendo and in Home Assistant/Homey, rename it on the new device:

1. Tap <MenuButton />
2. Tap "Settings"
3. Tap "Device Settings"
4. Tap "Device Name"
5. Enter the old device's name and tap "Save".

### If Zendo can't replace the device

If Zendo says "Not ready yet", the new device isn't connected to Home Assistant/Homey yet. Turn on **Always-On Display** on the new device, keep the Zendo app open on it, then try again. On a wall panel, Always-On Display is always on.

If Zendo says "Device not found", the old device is no longer in Home Assistant/Homey, for example because someone deleted it there, or another device replaced it. Zendo reloads the list.

***

## What carries over

The new device takes the old device's place in your automations, and takes on its settings and admin code.

### Automations and flows

The new device takes over the old device's entry in Home Assistant/Homey. The entry that was added for the new device when you turned on **Always-On Display** is removed, so the new device is listed once.

<AccordionGroup>
  <Accordion title="Home Assistant">
    The new device keeps the old device's device ID and entity IDs, so automations, scripts and dashboards that use them keep working. The device's area, and any name you gave it in Home Assistant, stay the same too.

    For example, a tablet called **Hallway** keeps `sensor.hallway_battery`, even if the new tablet has a different name.
  </Accordion>

  <Accordion title="Homey">
    Flows that pick the old device in the **Kiosk Device** field now control the new device, with no changes. Triggers and conditions follow the new device too.

    The **Kiosk Device** picker shows the new device's name. To keep the old name, [rename the new device](#keep-the-old-name).
  </Accordion>
</AccordionGroup>

### Device settings

The new device takes on the old device's settings automatically, the next time it connects to Home Assistant/Homey. If it's online, that's within a few seconds.

Settings the new device's hardware can't use are left out. For example, a tablet that replaces a wall panel doesn't take on **Wake on Approach**, because the tablet has no sensor for it.

The settings come from a backup on your hub. Each always-on display keeps a backup of its settings on your hub, and updates it whenever a setting changes.

### Admin code

The device [admin code](/permanent-devices/admin-code) is transferred with the settings (if a code was set).

### What doesn't carry over

Set these up again on the new device:

* On a wall panel, the date, time and time zone.
* The device's name. To show the new device under the old device's name, [rename it](#keep-the-old-name).

***

## Replace an online device

You can replace a device that's still online, for example when you install a new wall panel and the old one is still working. Zendo asks you to confirm a second time, with "Replace Anyway".

<Warning>
  Once it's replaced, the old device stops receiving commands from your automations and flows. If it keeps running Zendo with **Always-On Display** on, it joins Home Assistant/Homey again as a new device.
</Warning>

To stop using the old device, turn off **Always-On Display** on it, or [delete it in "Control Panels"](/permanent-devices/device-groups#remove-a-device-or-delete-a-setup-link).

***

## Remove old devices

A device you no longer use stays in Home Assistant/Homey, offline. That includes a device you sign out of Zendo, or delete in "Control Panels". It stays so that a new device can replace it later.

<AccordionGroup>
  <Accordion title="Home Assistant">
    You can delete an old device that's offline. Home Assistant removes its entities with it, so first check that no automation still uses them. A deleted device can't be replaced, and your hub no longer keeps its settings or its admin code.

    1. In Home Assistant, go to **Settings** > **Devices & services** > **Devices**.
    2. Open the old device.
    3. Open the device's menu (three dots) and select **Delete**.

    Home Assistant only deletes a device that's offline. If it's still online, turn off **Always-On Display** on it, or sign it out of Zendo, first.
  </Accordion>

  <Accordion title="Homey">
    Homey keeps an old device in the **Kiosk Device** picker, offline, until a new device replaces it.
  </Accordion>
</AccordionGroup>


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