> For the complete documentation index, see [llms.txt](https://commanderhelp.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://commanderhelp.verifone.com/general-help-guides/general-help/pos-troubleshooting-guide-for-circle-k-ck-helpdesk/pos-keeps-rebooting-on-its-own.md).

# POS Keeps Rebooting on Its Own

#### Use this when the POS/Register terminal turns off and on by itself or will not stay powered on.

The POS starts up, reaches a screen, then shuts down and restarts again. This can happen over and over.

*This is usually a power issue, such as a faulty power brick, loose power cable, or bad outlet.*

<details>

<summary>Keywords</summary>

Also called: POS reboot loop, register keeps restarting, POS cycling, POS turns off and on, POS won’t stay on, register rebooting, regsiter rebooting randomly, register keeps going off

Keywords: POS keeps rebooting, POS reboot loop, register restarting, POS power issue, faulty power brick, POS won’t stay on, random POS restart

</details>

### Symptoms

You may see one or more of the following:

* The POS starts up but shuts down and restarts on its own.
* The reboot cycle repeats without stopping.
* The POS briefly shows a screen, then goes dark and starts again.
* The register turns off and on during startup or during normal use.

Most likely cause: A faulty power brick, loose power connection, or bad outlet.

{% hint style="info" %}
After every step, watch the POS for 2–3 minutes to check if it stays on.

✅ The POS stays on and works normally — stop here. The issue is fixed.\
❌ Still rebooting — go to the next step.
{% endhint %}

### Before you start

* Locate the POS power cable and power brick.
* Identify a known-working outlet you can use for testing.
* If available, find a spare compatible power brick.

### How to fix a POS reboot loop

{% stepper %}
{% step %}

#### Reset the POS/register

Press and hold the **Reset** button on the register.

If that does not work, unplug the POS power cable from the battery backup.

Wait 2 minutes.

Plug the power cable back in.

Wait for the POS to fully restart.

✅ Issue fixed — stop here.

❌ Still not working — continue to Step 2.
{% endstep %}

{% step %}

#### Check the power brick and cable

Make sure the power cable is firmly connected at both ends — to the POS and to the power brick.

Check that the power brick is fully seated in the outlet.

Look for a damaged cable, bent connector, or overheating power brick.
{% endstep %}

{% step %}

#### Try a different outlet&#x20;

Move the power brick to a different working outlet.
{% endstep %}
{% endstepper %}

### Still not working? Contact the Helpdesk

{% hint style="info" %}
N**eed assistance? Contact Verifone Helpdesk at anytime.**

* Use our **Chat** platform
* Or call **1.800.VERIFONE (837.4366)**

Tell us the troubleshooting steps you’ve already tried. This saves time and gets you the right support faster.
{% endhint %}

### FAQ

<details>

<summary>Why does my POS keep restarting?</summary>

The most common cause is a power issue — a faulty power brick, loose cable, or bad outlet. Check all power connections first.

</details>

<details>

<summary>Why is my POS in a reboot loop?</summary>

A POS reboot loop usually means power is unstable. The register powers on, loses power, then starts again. Test the outlet, cable, and power brick first.

</details>

<details>

<summary>Could this be a software problem?</summary>

It’s possible but less common. If power troubleshooting doesn’t fix it, the Helpdesk can investigate further.

</details>

<details>

<summary>How do I test whether the outlet is causing the restart?</summary>

Plug in another device — like a phone charger — to the same outlet. If it works, the outlet is fine.

</details>

### Related issues

* [POS/Register Screen Is Frozen](/general-help-guides/general-help/pos-troubleshooting-guide-for-circle-k-ck-helpdesk/pos-register-screen-is-frozen.md)
* [POS is Slow or Lagging](/general-help-guides/general-help/pos-troubleshooting-guide-for-circle-k-ck-helpdesk/pos-is-slow-or-lagging.md)


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