FREQUENTLY ASKED QUESTIONS
General questions
Zip-code verification for our webstore is out of our control, for security reasons. This verification is received directly from the credit card issuer, so this is an issue that would need to be resolved with your credit card issuer. If you just moved, it may take a while for this information to be reflected on your account.
Alternatively, you may try to use another credit card, or check out using PayPal. A PayPal account is not required to checkout using PayPal.
We do our best to respond to your customer service requests within 1-2 business days.
Shipping and Delivery Times
Your order is shipped from California, and should be with you in 7-10 business days!
The tracking number provided by USPS is a customs label number, rather than a tracking number. USPS will treat this as a tracking number when it is in the United States, however these shipments are inconsistently tracked once the package has left the USPS jurisdiction (within the United States). We recommend that you contact your local postal courier and/or your local customs office with this customs label number to inquire if more information can be provided. It is possible that they have information locally that is not available in the USPS system.
NFC Questions
Yes, with the release of iOS 11, iPhone 7 and newer can read NFC tags. iPhone XS and on are equipped with automatic background tag reading capability. For older iPhone models, you'll still need to download an iPhone NFC app. See our list here.
If you want to write simple text (email, phone number, etc.), then we recommend using the NFC TagWriter by NXP.
Click here for more resources.
Try these troubleshooting tips:
1. Try to see if you are having the same problem with other NFC tags that you have ordered.
2. If you have access to another NFC device, try using the NFC tags on that device to see if you are still experiencing the same issues.
3. Try using these recommended Android apps to program your NFC tags (available on the Play Store): Trigger; NFC TagWriter by NXP.
Read about the different chips here.
The NFC World website maintains an updated list of NFC phones.
All NFC phones can read all NFC-compliant chips. Click here for the NFC-compliant chips that will definitely work with your NFC phone.
However, confusion arises when some phones can also read non-NFC compliant chips. For example, many phones (that use the NXP chipset such as the Samsung Galaxy S3) can read the MIFARE Classic chip (which is a non-NFC chip manufactured by NXP). People then assume that other NFC phones can read it and are disappointed when they don't. Be careful. Unless you have a specific need, we recommend that you stick with these NFC chips.
We don't recommend that you stick NFC tags over the charging area of wireless chargers (for example Qi chargers). Wireless charging and NFC use the principle of inductive coupling to connect with your smartphone. If the two are used together, the wireless charger will damage the NFC chip.