Troubleshooting & Fixes

If your card won’t scan, opens the wrong link, or behaves differently on iPhone vs Android, start here. We detail the most common root causes—case thickness, tag placement, chip capacity, metal interference, and cached redirects—and give you quick, repeatable fixes. Every article includes a fast checklist and photos of proper tap angles and tag placement to reduce misreads at events and trade shows.

What you’ll find here

iPhone can’t detect tag: antenna locations, cases, and tap angles
Android “Couldn’t read tag” and “Empty tag” errors explained
Wrong page opening: clearing cached URLs and fixing short-link redirects
Misreads near metal: anti-interference stickers and mounting positions
Programming failures: capacity limits, lock bits, and app conflicts

FAQs

Do metal cards work? Yes, but many need special construction. If you stick tags to metal surfaces, use anti-interference (on-metal) stickers.
Why does it open the wrong app? Some phones remember past actions. Clear defaults/cache and ensure your link uses HTTPS with a clear path.
Does chip size matter? Larger antennas and adequate chip capacity improve range and reliability.