# Everything Presence Pro & Lite - Polygon Zone Migration (v1.2.0 / v1.5.0)

# Everything Presence Pro & Lite – Polygon Zone Migration (v1.2.0 / v1.5.0)

This guide walks you through the one‑time migration from rectangular zones to polygon zones using the Zone Configurator.

## Who needs to do this

* **Everything Presence Pro** moving to **firmware v1.2.0** (polygon‑only)
* **Everything Presence Lite** moving to **firmware v1.5.0** (polygon‑only)


:::tip
If you are already on polygon‑only firmware, you do not need this guide.

:::

## Before you start (one‑time prep update)

The Zone Configurator needs a small **one‑time update** before it can update your device.

* **Pro**: install **v1.1.4** first
* **Lite**: install **v1.4.2** first


:::tip
You’ll see the prep‑update prompt **after** you select a device and click **Check for Updates**.

:::

## Step‑by‑step (recommended)


1. Open **Zone Configurator → Settings → Firmware**.
2. Select your device.
3. Click **Check for Updates**.
4. If prompted, click the link to install **one‑time update** (v1.1.4 / v1.4.2). You will need to do this over USB.

   
   1. Click the link to bring up the flash page
   2. Select the options you need for your device
   3. Press Install Firmware
   4. Plug device into USB, select the USB port from the popup
   5. Press install
   6. Wait till 100% completion
   7. Once it says “Installation Complete”, close this tab and head back to zone configurator.
5. Click **I have installed version X** to continue.
6. The configurator will automatically:
   * Confirm the prep update
   * Refresh device details
   * Check for the next update
7. When the polygon update is available, choose **Continue and Migrate**.
8. The configurator will:
   * Back up your existing rectangular zones
   * Install the new firmware
   * Re‑sync entities
   * Restore your zones as polygons
   * Verify the result

## What to expect during the migration

You’ll see a progress checklist:

* Backup zones
* Install update
* Re‑sync entities
* Restore zones
* Verify zones

Keep this window open until it completes.

## If something goes wrong

Don’t worry - your zones are backed up.

Try these quick fixes:

* Click **Re‑sync entities**
* Open **Settings → Zone Backups, select devices from drop-down** and restore your latest backup

If the verification step shows a warning, your zones were still restored. You can review them in the Zone Editor.

## FAQ

**Will my Wi‑Fi be erased when flashing the prep update?** No. The installer preserves your Wi‑Fi settings. Do not tick the option to erase.

**Do I need to redo my zones?** No. Your rectangular zones are converted into polygons automatically.

**Can I do this manually?** Yes. Back up your zones before updating. After the update, restore the backup to convert them to polygons.

---

**Documents**

- [EP1 vs EPL: Which Sensor is Right for You?](https://docs.everythingsmart.io/s/products/doc/ep1-vs-epl-which-sensor-is-right-for-you-5B3RxiY3Kp)
- [Everything Presence One (EP1)](https://docs.everythingsmart.io/s/products/doc/everything-presence-one-ep1-3R178yZSUP)
- [Everything Presence Pro](https://docs.everythingsmart.io/s/products/doc/everything-presence-pro-nh3fIXmow9)
- [Everything Presence Lite (EPL)](https://docs.everythingsmart.io/s/products/doc/everything-presence-lite-epl-ZVnBzYzuX2)
- [Zone Configurator](https://docs.everythingsmart.io/s/products/doc/zone-configurator-93b9scGsa2)
- [Knowledge Base Articles](https://docs.everythingsmart.io/s/products/doc/knowledge-base-articles-KnRRmk4zvt)