SkyTab card machine not working? Start here

The SkyTab is Shift4’s point-of-sale system, with strong back-office functionality and an offline mode if your Wi-Fi fails. Like any device that lives on a busy counter, it can have its off days.

Before you do anything else, try a restart: power the SkyTab off, wait 30 seconds, then power it back on. A restart is a sensible first step for frozen screens, dropped connections and printing glitches. Shift4’s own guide will have the exact steps for your model.

If that doesn’t sort it, find your exact symptom below and work through the steps in order.

SkyTab won’t connect to WiFi

If payments are timing out or the screen shows “no connection”, the network is the first thing to check. If the network is down, you may not be able to take a card. The SkyTab has an offline mode if your Wi-Fi fails, so ask Shift4 how it works for you.

Fix: reconnect the SkyTab to your network

1. Swipe down from the top of the screen and check the WiFi icon — if it’s greyed out, WiFi is off.
2. Open the device’s WiFi settings and confirm it’s switched on.
3. Select your business network and re-enter the password. Watch for a capital letter or a zero-vs-O typo.
4. Still nothing? Restart your router (unplug for 30 seconds), then restart the SkyTab.
5. If WiFi still won’t hold, contact your broadband provider or Shift4 support.

A SkyTab that constantly drops WiFi may be too far from the router or sitting behind a thick wall. Try moving it closer to the router, or ask about a WiFi extender for the counter.

SkyTab not printing receipts or paper jam

No receipt printing is a common fault on any device with a built-in printer. Check the roll first.

Fix: clear the printer and reload paper

• Check the roll first. Open the printer flap. If the roll’s empty or nearly out, that’s your answer.
• Load the roll the right way round. Thermal paper only prints on one side. If it prints blank, you’ve probably got it back to front, so flip it.
• Clear a jam. Open the flap, gently pull any crumpled paper out in the direction it feeds, and make sure no torn edges are stuck in the mechanism.
• Close the flap firmly so it is fully shut.
• Reprint the last receipt if your system lets you, to test, rather than re-running a card.

Thermal rolls fade in heat and direct sunlight too. If receipts come out faint, the roll’s old or has been sat near a window — swap it.

SkyTab won’t charge or power on

A dead SkyTab is alarming when there’s a queue. Check the dock, the cable and the socket.

Fix: rule out the power chain

1. Check the dock contacts. Wipe the dock and the base of the handheld with a dry cloth, as dirt can stop them connecting.
2. Seat it properly. Make sure the device is sitting properly in the dock and check for a charging indicator.
3. Test the socket. Plug something else into the same wall socket to confirm it’s live. Avoid charging through an overloaded extension lead.
4. Try the cable direct. If your model allows it, charge it with the original cable without the dock. If it charges this way, the dock may be the problem.
5. Give it a few minutes. Leave it on charge before you assume it’s dead.

SkyTab screen frozen or unresponsive

If the touchscreen has locked up mid-transaction and taps do nothing, don’t keep jabbing at it — that can fire off a duplicate payment once it unfreezes.

Fix: force a restart

1. Restart the device using its power button.
2. Wait 30 seconds, then power it back on and let it fully load before tapping anything.
3. Once it’s back, check your transaction history to confirm the frozen payment didn’t go through twice before you re-take it.
4. If it keeps freezing, contact Shift4 support.

SkyTab card declines or payments failing

If cards are being declined across the board — not just one customer — the issue is the connection or the processor, not the card.

• One card declining: Ask the customer to try again, insert instead of tap, or use another card. That’s a card issue, not a SkyTab issue.
• Every card declining: Check the connection icon. No signal means the payment can’t reach the bank. Check your connection and retry.
• “Transaction not authorised” on everything: Restart the device. If it persists, your merchant account or processor may have a temporary outage — that’s worth a call.

SkyTab dock not charging

If the handheld’s fine on a cable but won’t charge in the dock, the dock is the culprit. Run through these before writing it off:

• Confirm the dock’s own power cable is firmly in the back of the dock and in a live wall socket.
• Clean the charging pins on the dock and the contacts on the base of the SkyTab.
• Make sure nothing — a stray receipt, a coin — is sitting in the cradle and holding the device off the pins.
• If the dock still won’t charge, contact Shift4 support about a replacement.

Frequently Asked Questions

Why is my SkyTab card machine not working all of a sudden?

A SkyTab that stops working suddenly can be down to a lost connection, an empty paper roll, or a device that needs a restart. Restart it, check the network icon, and check the paper roll.

How do I reset a SkyTab terminal?

Restart the device using its power button, wait 30 seconds, then power it back on. Check Shift4’s guide before trying anything more drastic, and don’t factory reset unless support tells you to.

Why won’t my SkyTab connect to WiFi?

Usually it’s a wrong password, the router needs a restart, or the SkyTab is too far from the router. Re-enter the WiFi password in Settings, restart your router, and move the dock closer if the signal’s weak.

Does Smart Payment Solutions support the SkyTab?

Yes. The Shift4 SkyTab is one of the POS systems we compare, alongside machines from SumUp, Square, Teya, Clover and others. Because we’re independent, we’re not tied to pushing one device — we match you to the machine and rates that actually fit your business, with every contract length shown up front.

Still stuck? Here’s what to do next

If you’ve worked through the steps and your SkyTab still won’t behave, the fault may be the merchant account or the connection set-up behind it rather than the hardware. That’s worth a proper look — especially if you’re stuck in a contract that’s costing you more than it should.

We’re based in the North East and have helped over 500 UK businesses get their card payments sorted — the right machine, fair rates, and support you can actually phone. We show every contract length up front, and we’ll tell you to stay put if your current setup’s fine.

If you’d rather just talk it through, request a no-obligation quote or give us a ring and we’ll give you a straight answer.