SkyTab card machine not working? Start here

The SkyTab is Shift4’s Android handheld — a touchscreen terminal with a built-in receipt printer, 4G and WiFi, and a charging dock. It’s a solid bit of kit, but like any device that lives on a busy counter, it has its off days.

Before you do anything else, try the one fix that clears more SkyTab faults than any other: hold the power button for about 10 seconds, let it shut down, wait 30 seconds, then power it back on. A clean restart resolves frozen screens, dropped connections, and printing glitches more often than people expect.

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. The SkyTab falls back to 4G when WiFi drops, but if both are down you can’t take a card.

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. Go to Settings → Network → WiFi 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 won’t hold but 4G works, you can keep trading on mobile data while you sort the broadband.

A SkyTab that constantly drops WiFi is usually too far from the router or sitting behind a thick wall. Move the dock closer to the router, or ask about a WiFi extender for the counter.

SkyTab not printing receipts or paper jam

No receipt printing is the most common call we get on any handheld with a built-in printer. Nine times out of ten it’s the roll, not the machine.

Fix: clear the printer and reload paper

• Check the roll first. Lift the printer flap on top of the SkyTab. 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. The paper should feed from under the roll, coming up and over the front. If it feeds blank, you’ve got it back to front — 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 until it clicks. A flap that isn’t fully shut stops the printer dead.
• Reprint the last receipt from the transaction history 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, but it’s rarely the battery giving up. It’s usually the dock, the cable, or the socket.

Fix: rule out the power chain

1. Check the dock contacts. The SkyTab charges through metal pins on the dock. Wipe them and the base of the handheld with a dry cloth — grease and till receipts build up and break the connection.
2. Seat it properly. Drop the device squarely into the dock until you see the charging icon. A unit balanced at an angle looks docked but isn’t charging.
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 you’ve got the original USB-C cable, plug it straight into the handheld, bypassing the dock. If it charges this way, the dock’s the problem.
5. Leave it 15 minutes. A fully flat battery can take a few minutes before the screen even reacts — don’t assume it’s dead after 30 seconds.

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. Hold the power button for a full 10–15 seconds until the screen goes black.
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 freezes again within the hour, it may be mid software update — leave it on a stable WiFi connection and let the update finish.

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. Switch from WiFi to 4G (or back) 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, run on the direct cable for now and get a replacement dock sorted. The handheld will hold a full day on a charge.

Frequently Asked Questions

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

A SkyTab card machine that’s not working out of nowhere is almost always one of three things: it’s lost its WiFi or 4G connection, the receipt printer’s out of paper, or the device needs a restart after a software update. Hold the power button for 10 seconds to restart it, check the network icon, and check the paper roll. That clears the large majority of sudden faults without any engineer call-out.

How do I reset a SkyTab terminal?

Hold the power button for about 10–15 seconds until the screen goes black, wait 30 seconds, then power it back on. This soft restart fixes frozen screens, dropped connections and most glitches. Avoid a full factory reset unless your provider’s support team walks you through it — that wipes the configuration and you’ll need it re-set up.

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. The SkyTab will fall back to 4G in the meantime so you can keep taking payments.

Does Smart Payment Solutions support the SkyTab?

Yes. We supply and support the Shift4 SkyTab 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 no long contracts.

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. No long contracts on anything we recommend, and no pressure to switch 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.