Can My Control4 System Run X4? The 2026 Compatibility Guide

Control4 X4 is out, and the first question worth answering is not whether you should upgrade — it is whether you can. Unlike previous Control4 releases, X4 does not support every piece of hardware in the field. Some systems get the full experience and every future release. Some get X4 and then stop. Some do not get it at all.

This guide tells you which group you are in. It takes about ninety seconds and does not require you to know anything technical.

Step 1: Find Your Controller

Your Control4 controller is a slim black box, usually somewhere out of sight. In most Sydney homes it is in one of four places:

• The comms cupboard or data cabinet — often in a hallway, laundry or under the stairs
• An AV rack, if you have a home theatre or a dedicated equipment cupboard
• Behind or beneath the main television
• In the garage, near the switchboard or NBN connection

Look at the front of the unit. The model name is printed on it. You are looking for one of these: CORE 5, CORE 3, CORE 1, CORE lite, EA-5, EA-3, EA-1, CA-10, CA-1, HC-250, HC-800 or HC-1000.

While you are there, note what touch screens you have on the walls. T4 screens are the current generation; T3 screens are the previous one. If you are not sure, that is fine — the difference is covered below, and we can identify everything remotely anyway.

Step 2: Find Your Tier

Control4's published hardware requirements put every device into one of a few groups. Here is what each one means for you in plain terms.

Green: Full X4 support

Controllers: CORE 5, CORE 3, CORE 1
Interfaces: T4 8-inch and 10-inch (in-wall and tabletop), Halo Touch

You are in the best position. Your system runs X4 in full and will receive X4.1 and every release after it. For most homes in this tier the upgrade is a software job — often with no site visit required at all, or a single short visit to rebuild the home screen and walk you through the changes.

Amber: Supported, with one caveat

Controllers: EA-5 (v1 and v2), EA-3 (v1 and v2)

X4 runs on these controllers. Two things change that you should be told about before the upgrade rather than after:

• You lose the OS 3 interface at X4.0 — the system moves to the new look and does not move back.
• On-screen control through the television changes at X4.1. If your household relies on controlling the system from the TV screen, raise this before you book anything.

Our recommendation for this tier: upgrade now, get the OnScreen change in writing, and put a controller refresh in the plan for the next year or two rather than treating it as urgent.

Amber: Compatible

Devices: CORE lite, CA-10, CA-1, EA-1 (v1 and v2), Halo Remote, SR260 remote, DS2 Door Station, Chime Video Doorbell, NEEO Remote

These work with X4. Some interfaces keep the OS 3 look rather than adopting the new one — the NEEO remote in particular retains the OS 3 experience. It is not a fault; it is how the hardware is supported. Worth knowing so the difference between your touch screen and your remote does not come as a surprise.

Red: Runs X4.0, then stops

Devices: T3 touch screens (all sizes), T3 keypads (2-button, 3-button and 6-button models), and a range of older lighting families including Vibrant Linear, Lux, Wireless and Essential dimmers, switches and controllers

This is the tier that catches people out, so let us be precise about it. Your T3 screens do not stop working. They run X4.0 and continue to function normally. What they will not do is update to X4.1 or any release after it.

In practice that means your system keeps working while the rest of the platform moves forward. That is fine for a while and gradually becomes less fine. The replacement path is a T4 touch screen or Halo Touch, and it is a visible upgrade — the current screens are a generation better in both display and responsiveness.

You do not need to do this today. You do need to know it is coming, particularly if you are planning a renovation or any other work that would make screen replacement cheaper to bundle in.

Replace: No X4

Controllers: HC-250, HC-800, HC-1000 and earlier

These controllers predate X4 and do not appear on Control4's supported hardware list. If this is what is in your rack, X4 is a controller replacement conversation rather than a software upgrade.

Two things worth saying honestly here. First, your system continues to work exactly as it does now — nothing is being switched off. Second, if you have been running an HC-series controller, it has probably been in the wall for the better part of a decade, and the difference between it and a current CORE controller is substantial in speed, integration breadth and reliability. This is a real cost, and it is also a real upgrade rather than a forced purchase for its own sake.

Quick Reference Table

What If You Have a Mix?

Most homes do, and this is where it gets less tidy than a table suggests. A CORE 3 controller with three T3 screens on the walls is a very common configuration in Sydney — the controller was upgraded at some point, the screens never were.

In that case you get full X4 on the controller and app, and your T3 screens run X4.0 and stay there. The system works. The screens simply become the component that determines when the next piece of work happens.

The other common mix is a supported controller running older lighting hardware. Lighting families are covered by the same tiering, so the sensible approach is to have the whole system audited rather than checking the controller and assuming the rest follows.

What Happens After You Know

Whichever tier you land in, the practical next steps are the same:

1. Get the system audited properly. A remote check confirms the controller, the interfaces, the lighting hardware, the drivers in use, and whether any integrations need attention before the upgrade. Ours takes about fifteen minutes and costs nothing.
2. Get the caveats in writing. If you are in the EA tier, the OnScreen change should be documented before work starts. If you have T3 screens, the X4.0 ceiling should be documented too.
3. Separate the X4 decision from the Connect decision. X4 is the platform upgrade. Control4 Connect is an optional subscription for remote access and self-service routines, billed directly by Control4. They are not the same purchase and should not be bundled into one yes. We cover the difference in Control4 X4 vs OS 3.
4. If you are on unsupported hardware, plan rather than react. Nothing is being switched off. Use the time to scope the replacement properly — and if you are renovating anyway, bundle it.

Frequently Asked Questions: X4 Compatibility

How do I find out what Control4 controller I have without going into the cupboard?

Open the Control4 app, or ask your integrator. Any Control4 dealer can identify your controller, software version and connected devices remotely in a few minutes — you do not need to find or read anything yourself.

My controller supports X4 but my touch screens are T3. What happens?

Your system runs X4. The T3 screens run X4.0 and continue to work normally, but will not receive X4.1 or later releases. Everything else — the app, the controller, supported devices — carries on updating. It is a common configuration and it is not urgent, but it does set the timeline for your next piece of work.

Will my Control4 system stop working if I do not upgrade to X4?

No. OS 3 systems continue to run. What changes over time is the surrounding ecosystem: new hardware, drivers and third-party integrations are developed against the current platform, so an OS 3 system gradually has access to fewer new capabilities. It is a drift, not a cut-off.

I have an HC-800. Is there any way to run X4?

Not on that controller. HC-series controllers do not appear on Control4's X4 hardware list. The path forward is a controller replacement — and because the rest of your installation (wiring, keypads, speakers, screens depending on generation) generally stays in place, this is usually less disruptive and less expensive than people expect. Worth getting a real number rather than assuming.

Can I upgrade to X4 myself?

No. Control4 systems are dealer-programmed, and the upgrade involves a driver and integration audit as well as the software itself. Attempting it without the right access is the fastest way to turn a straightforward job into an expensive one.

Does the X4 upgrade require new wiring?

Almost never. On supported hardware it is software. Where hardware replacement is needed — a controller or touch screen — the existing cabling is generally reused, which is the reason these upgrades are far less invasive than the original installation was.

We are outside Sydney. Can you still help?

The readiness check is remote, so we can tell you where you stand regardless of location. Physical work depends on where you are — if we cannot service your area we will say so and point you to the nearest certified dealer rather than waste your time.

If you would rather not go looking for model numbers, we will do it for you. The readiness check is free, takes about fifteen minutes, is done remotely, and gives you a straight answer either way — including if the answer is that you do not need to do anything yet.

Book a Free X4 Readiness Check →