If your NFC business card is not working, the cause is almost always one of three things: the phone is not in a state where it can read a tag, the tag was never encoded correctly or carries a record type the phone ignores, or the tap works fine but the link stored on the tag is dead. On iPhone specifically, the most common technical cause is a tag written with a raw vCard record instead of a URL record, because iOS ignores vCard records on NFC tags. This guide covers all twelve causes, device by device, with the fix for each.
60-second triage: three checks before you read anything else
These three checks, in order, resolve most "my NFC card will not tap" reports.
- Check the phone can read tags at all. On Android, confirm NFC is on in Settings. On iPhone, check the model: XS, XR and newer read tags automatically, iPhone 7 through X only via the Control Centre NFC Tag Reader, iPhone 6s and earlier not at all, and no iPad ever.
- Check you are tapping the right spot, long enough. On iPhone the antenna is at the top edge, not the middle of the back; on most Android phones it is mid-back. Hold the card still for two to three seconds instead of swiping it past.
- Check the tag contains something. Read the card with a free app such as NFC Tools on a phone you know works. An empty tag means the card was never encoded, and no amount of phone fiddling fixes that.
If all three pass and the card still does nothing, the table below maps each remaining cause to its fix.
All 12 causes and their fixes, in one table
| # | Cause | What you see | Fix |
|---|---|---|---|
| 1 | NFC switched off on Android | Nothing happens on any tag | Turn NFC on in Settings; reboot if the toggle will not hold |
| 2 | Screen off, locked, or not unlocked since restart | No vibration, no banner | Wake and unlock the phone first, then tap |
| 3 | Low Power Mode or Airplane Mode | Worked yesterday, dead today | Turn both off and retry before blaming the card |
| 4 | iPhone 7, 8 or X: no background reading | Newer iPhones read the card, this one does not | Add NFC Tag Reader to Control Centre and scan manually |
| 5 | Wallet, camera or another app holding the NFC radio | Tap ignored while one app is open | Close Wallet, Apple Pay or the camera, then tap again |
| 6 | Tag was never encoded | Reader app reports an empty or unformatted tag | Write a URL record to it, or ask the vendor to re-encode |
| 7 | Tag write-locked with wrong data | Reader shows old content; writes fail | Locking is permanent; replace the tag |
| 8 | Chip or antenna physically damaged | Card worked, then stopped after bending or heat | Nothing to repair; replace the card |
| 9 | Metal, thick case, PopSocket or magnetic wallet in the way | Works on a bare phone, not a cased one | Remove the obstruction, or use a card with ferrite shielding |
| 10 | Tag carries a vCard record instead of a URL record | Android opens a contact, iPhone does nothing | Rewrite the tag with a URL record pointing at a web profile |
| 11 | Destination link is dead, expired or returning 404 | Banner appears, page fails to load | Open the URL in a browser and fix the page, not the tag |
| 12 | Plain http, redirect chain, or a page too heavy for mobile data | Banner appears, then a warning or blank screen | Serve the destination over https with no redirect hops |
Where the NFC antenna actually is, and how to tap properly
Many failed taps are not faults at all, just bad aim. Apple places the iPhone's NFC antenna at the top edge, near the rear camera module, so touch the card to the top inch of the phone. Tapping the centre of an iPhone's back is the most common mistake, because that is where Android phones and payment terminals put their antennas.
Most Android phones put the antenna in the middle or upper-middle of the back panel. Samsung shows the exact position per Galaxy model in Settings, under Connections, then NFC and contactless payments. If mid-back fails, slide the card slowly across the back and watch for the vibration.
NFC works over roughly a couple of centimetres and the handshake takes a moment, so hold the card still for two to three seconds. Swiping gives the radio too little time in the field, producing intermittent failures that look like a faulty chip.
Phone-side causes and fixes
NFC is switched off (Android only)
Android exposes NFC as a toggle that users and battery savers can switch off. On stock Android it sits under Settings, Connected devices, Connection preferences, NFC; on Samsung Galaxy devices under Settings, Connections, NFC and contactless payments. iOS has no NFC toggle at all, so "turn on NFC" advice for an iPhone is simply wrong.
Screen off, locked, or not unlocked since restart
Background tag reading on iPhone runs only while the display is on, and not at all until the phone has been unlocked once since its last restart. Most Android builds behave similarly, so wake and unlock first.
Low Power Mode or Airplane Mode
Airplane Mode suspends background NFC tag reading on iPhone, and Low Power Mode can suppress it too. This is the classic "it worked at the last event and now it does not" cause: the failing phone is usually the one running on fumes at day's end.
Older iPhones need the Control Centre reader
iPhone 7, 7 Plus, 8, 8 Plus and X read NFC tags, but never on their own: background tag reading arrived with the iPhone XS generation in 2018. Add NFC Tag Reader to Control Centre in Settings, then open Control Centre, tap the reader and hold the card to the top edge.
Another app is holding the NFC radio
Only one thing can use the NFC radio at a time. Background reading on iPhone pauses while Apple Pay or Wallet is on screen, while the camera is active, and while any app holds a reader session. Close them before tapping.
Card-side causes and fixes
The tag was never encoded
Blank cards ship more often than people expect, particularly in cheap multipacks and cards sold as "write it yourself". A reader app reports an empty tag or no NDEF message. Writing a short URL record fixes it in a minute, and short matters: an NTAG213 holds only about 144 bytes of user memory, so a long tracking-parameter link can produce a truncated write. Our walkthrough on how to program an NFC business card covers the steps on both platforms.
The tag is write-locked
NFC Forum Type 2 tags such as the NTAG213, NTAG215 and NTAG216 have one-time-programmable lock bits. Once a tag is read-only it stays read-only: it cannot be erased, reformatted or rewritten by any app, so a card locked with a typo in the URL is finished. Never lock a tag until you have tested it on both an iPhone and an Android phone.
Physical damage
The chip is tiny, but the antenna is a loop of thin wire or printed conductor running around the card. Repeated bending, a punched hole, a laminator or a hot dashboard breaks that loop, and there is no repair path.
Metal, cases, PopSockets and magnetic wallets
Metal detunes NFC. A metal business card works only if the manufacturer laid a ferrite shielding layer between the metal and the antenna, and bare metal behind an ordinary tag kills it outright. On the phone side, the culprits are rugged cases, a PopSocket over the antenna, a magnetic card wallet, and cards wedged between phone and case.
The record-type problem: why iOS ignores a vCard on a tag
This is the cause most troubleshooting pages miss, and it explains a card that works on every Android phone in the room and does nothing on an iPhone.
iOS background tag reading does not support the vCard record type. If an NFC business card is encoded with a raw vCard, Android will open it as a contact and iPhone will ignore the tag completely. The tag must carry a URL record instead.
This is a design decision, not a bug. Android's tag dispatch system hands a vCard MIME record straight to the contacts app, while Apple's background reader acts on a narrow set of types, with the URL record the one that reliably produces the tap banner. A vCard tag is not defective; it is simply invisible to half the phones it will meet.
The fix is to point the tag at a web page instead of at contact data: write a URL record holding the https address of a digital profile, and let that page offer the contact download. Every phone that reads NFC understands a URL record, and the same page can also be shared by QR code, link or message. That is the architecture behind most modern digital business cards, including a FollowMySite digital business card.
The trade-off is worth stating plainly: a URL record needs a live internet connection at tap time, while a vCard written straight to the tag does not. You are trading offline capability for working on iPhone. If you are still choosing between the two technologies, our comparison of NFC versus QR business cards sets out where each one wins.
Destination causes: the tap works but nothing useful happens
If the phone vibrates and a banner appears, NFC has done its job. Everything after that is a web problem, and rewriting the tag will not help.
The link is dead or the profile expired
Most card platforms host the profile on their own domain and keep it alive only while a plan is active. When the plan lapses, the URL on a permanently encoded tag starts returning a 404 or a sales page. The plastic outlives the subscription, the most under-discussed risk in the category. Before ordering locked cards in bulk, check what happens to the page if you stop paying, and prefer a one-time option or a redirectable URL. Our note on whether digital business cards are safe covers the related data-control questions.
http instead of https, or too many redirect hops
A tag encoded with a plain http URL often triggers a browser security warning, and stacked short-link and platform redirects add latency on exactly the congested networks where cards get tapped. Encode the final https address, and keep the page light.
Then test it on a phone that is not yours, on mobile data, in a private window, so your own login state cannot mask a problem.
Device compatibility: what reads an NFC business card and what does not
Confirm the phone in front of you can read a tag at all. Some people carry a device that cannot, and no card fixes it.
| Device | Reads NFC tags? | What you need to do |
|---|---|---|
| iPhone XS, XR and every model since | Yes, automatically | Unlock the phone, hold the card to the top edge |
| iPhone 7, 7 Plus, 8, 8 Plus, X | Yes, manually only | Start NFC Tag Reader from Control Centre, then tap |
| iPhone 6s and earlier | No | Use the QR code or a plain link instead |
| iPad, any model | No | Apple's tag-reading framework is iPhone-only; use QR or a link |
| Android phone with NFC hardware | Yes | Turn NFC on, unlock, hold the card mid-back |
| Android phone without NFC hardware | No | Common on budget models; use the QR code or a link |
| Android tablets | Usually not | Assume no; check Settings for an NFC entry |
The practical consequence: NFC can never be your only sharing method. The profile behind the card needs a QR code and a plain shareable link too, the standard setup described in our complete guide to digital business cards.
How to test an NFC business card properly
Guessing wastes cards. This isolates whether the fault is the phone, the tag or the destination, in five minutes with one free app.
- Install a tag reader. NFC Tools runs on both iOS and Android and shows a tag's raw contents rather than just acting on them.
- Prepare the phone. Unlock it, turn off Low Power Mode and Airplane Mode, and close Wallet and the camera.
- Read the tag. Choose Read and hold the card to the antenna for three seconds. Note the tag type, memory size, whether it is writable or read-only, and its records.
- Check the record type. You want a URI or URL record holding an https address. A vCard or contact record and nothing else is cause ten, which explains any iPhone failure on its own.
- Paste the URL into a browser by hand. If the page fails to load there, the tag is fine and the destination is the problem.
- Repeat on a second phone, ideally the other operating system. Reads on Android but not iPhone points to the record type or antenna position; reads on neither points to the tag.
- Compare against a known-good tag. Tap any other NFC tag you own with the same phone. If nothing reads at all, the fault is the phone, not your card.
If none of this works: the fallback that always works
Sometimes the honest answer is that a tag is dead. Lock bits cannot be unset, a broken antenna cannot be resoldered, and a phone without NFC hardware will never read a tag.
If the tag itself is dead, any QR code or plain link pointing at the same page will still work. That is the argument for building a digital business card as a web page rather than data stuck on a chip: the chip is one door of several into the same room.
So back every card with three things: the NFC tag, a printed QR code resolving to the same https URL, and a link you can paste into a message or email signature. Our guide to creating a QR code business card covers the sizing and contrast rules that keep a code scannable in poor lighting.
If you would rather not assemble that yourself, FollowMySite builds the profile as an ordinary web page with a QR code to the same address: it opens on iPhone without an app, any blank NFC tag you already own can point at it, and there is a one-time option instead of a monthly subscription.
Frequently asked questions
Why is my NFC business card not working on iPhone?
Usually tap position or record type. The iPhone's NFC antenna is at the top edge, not the centre of the back, so hold the card there for two to three seconds with the phone unlocked and the screen on. If it still does nothing while Android phones read it fine, the tag is encoded with a vCard record, which iOS ignores. It needs a URL record.
Do all phones read NFC business cards?
No. iPhone XS, XR and newer read tags automatically; iPhone 7 through X need the NFC Tag Reader started from Control Centre; iPhone 6s and earlier cannot, and no iPad can. Most mid-range and flagship Android phones have NFC, but many budget models and most Android tablets do not. Always pair an NFC card with a QR code and a link.
Can an NFC business card be reprogrammed?
Usually yes, unless it was locked. Most NFC business cards use rewritable NFC Forum Type 2 chips such as the NTAG213 or NTAG216, and a free app like NFC Tools can overwrite the stored URL as often as you like. The exception is a tag whose one-time-programmable lock bits are set: that tag is permanently read-only.
Does an NFC business card work without internet?
The tap works without internet, but the page usually will not. The tag stores only a short URL, which the phone reads over radio with no network involved, so the banner still appears offline. Opening the profile behind it needs a connection, so if you often present where there is no signal, carry a saved contact file as a backup.
Does a phone case block NFC?
Thin plastic, silicone and leather cases rarely cause problems, but thick rugged cases, metal cases, magnetic card wallets, PopSockets over the antenna and credit cards wedged behind the phone all can. Samsung explicitly warns that magnetic card-holding covers interfere with NFC. If a card fails on a cased phone, remove the case and retest before blaming the card.
Do NFC business cards expire?
The chip does not, but the link on it can. An NFC tag has no expiry date and typically survives years of normal use. What expires is the profile page it points at, if that page sits on a plan that lapses. Before ordering locked cards in bulk, confirm what happens to the URL when you stop paying.