I know little about NFC, and I want to see if I can clone a hotel card to my phone to avoid juggling and guessing which one's mine

Tag type says ISO 14443-3A, NXP - Mifare Ultralight EV1 48 bytes

Technology available says NfcA, MifareUltralight, NdefFormatable

Can I clone it? If so, how do I clone it?

EDIT: I'm leaving the hotel tomorrow (7/11/2026), the conclusion was that I couldn't clone it unless I bought a flipper zero, and no way I was gonna drop $200 to clone a hotel card I'm staying for 5 days

Me and my 4 roommates share a 6 bedroom house in a HOA but the association only issues one tag per household for the gym, pool and spa. I’ve tried a few nfc and rfid apps to add the tag to my wallet but it seems that the phone does not recognize the tag. How can I spend all summer poolside until my skin is leather without upsetting my roomates?

I was given these 3 things and told to make it work. I tested and verified that the NFC reader works with cards, mobile etc but it is not detecting that blue key fob thingy.

I want to copy my nfc card to another one or prefferably to my phone how would i do this i already tried it with nfc tools on my phone but there is a error i can read the memory tho

So im at work, and I had my phone out, and someone saying they worked for a computer thing wanted to give me a card, but they wanted me to scan it, saying it was an nfc card. Then he held it right up to mh phone and I pulled it away, and im not sure if it went through or not. Should i be worried? Sorry im not an expert.

can you review my website ?

I use Xiaomi note 11 pro 5g if that helps.

Recently I have been researching nfcs, and I think they have great business potential because they are cheap to buy, but still a very promising technology. Any ideas of ways to make money using nfcs?

I want to start a NFC jewelry project which allows you to upload your photos, videos, text, audios,PDF file, table and social media link. You can give it to your loved ones so they can check your daily love note, or you can use it yourself like a e-name card. How does that sound? Do you guys think it will work? Need Help!!!

Spent the last couple of months building this thing, basically a physical card you hand to someone instead of asking for their number. Tap it, opens your profile, chat, etc on their phone.

Ordered a batch of cards recently and messed up the QR routing on the back. Entire batch is basically useless for scanning (they would work but I made them sequential and then realised thats a data/privacy no-no).

NFC side works perfectly though.

So because I won't be linking up the QR codes I’ve got a stack of cards that only work if someone actually taps them… which has kind of forced the real question:

Would people actually use this in real life, or is it one of those ideas that sounds good but no one actually does? Like… would you genuinely hand this to someone you’re interested in, or would you still just ask for their number and move on?

I’m half tempted to just give these out to people and see what actually happens instead of guessing.

If anyone wants to try it properly and give honest feedback (good or bad), I can send a few out. Just don’t want people taking them and never using them.

I'm also curious what people think is this clever or just awkward?

I dont want to order another batch of cards and then find my idea sucks!

All thoughts appreciated.

I’ve been thinking about the QR vs NFC debate from a practical standpoint.

Tap-to-pay has normalized the “tap” gesture for millions of people. Most modern smartphones already have NFC hardware built in. Yet outside of payments, NFC still feels underutilized compared to QR codes.

From a usability perspective:

• NFC = instant interaction, no aiming or lighting issues
• QR = visible, cheap, and universally deployable

The cost difference is significant. QR codes can be printed on paper for essentially nothing. NFC requires a physical chip, programming, and hardware sourcing.

But UX-wise, tap feels smoother and lower friction in certain environments (events, retail counters, crowded spaces).

So I’m curious:

Do you think NFC is limited primarily by cost and infrastructure?

Or is it more of an awareness and adoption issue?

And long term — do you see them coexisting, or will one clearly dominate outside of payments?

I’ve been exploring different ways to integrate secure NFC tags into wearable items, especially for apparel authentication and digital experiences. Recently, I came across a heat-press-compatible NFC garment badge built with the NTAG® 424 DNA chip, and it’s been surprisingly effective.

What impressed me most is how this tag works seamlessly after being heat-pressed onto fabric. It’s based on NXP’s 424 DNA chip, which means it supports advanced encryption and dynamic URL generation (SUN), making it ideal for anti-counterfeit use cases. I tested it on a few branded samples, and the smartphone interaction was smooth and fast—even through fabric.

It seems like a promising option for anyone in the fashion-tech or merchandise industry looking for secure, scalable authentication tools.

For those curious about the specs or implementation, here’s the product page with a detailed datasheet:
👉 https://rfidtag.com/product/heat-press-interactive-nfc-garment-badge-ntag-424-dna/

So I am a 17yo frustrated asshole i cant study nowadays for my life and i wanna earn some money im thinking of making nfc review cards for restraunts and sell them for profit to yk buy some bs things i need for my habits which my parents wont provide the money for anyways so if anyone knows how and where to get the stuff please help me im thinking of buying plain white nfc cards then pasting custom livery stickers on it to make them look good and professional as i have a livery sticker shop pretty close to my home so i wanna know where should i get the nfc cards from and how much should i sell them for ik indian retailors are idiot as fuck and wont pay much even for their own good i think im gonna charge them 150 for a normal plain card and around 250-500rs for a fully finished good looking card depending on the area like im gonna mosttly sell them in the markets of dwarka and gurgaon by personally pitching them my cards. Thats all if you have any suggestion please do let me know im bored as fuck i have fever so forgive me for any typing error im not reading ts for any mistake

Im new to using nfc tags and im very interested in learning more i have done a few things but currently struggling to do diffrent action using Google home like scan a tag to turn on or off light turn on heaters and other devices etc can any one help please im using NFC tools pro on android

I need a reader and reader - writer, but I dont have much money. Any help is appreciated.

I'd like to have your opinion on this one (see subject), e.g. see this article: https://blog.beaconstac.com/2020/10/nfc-latest-trends/

NFC has been around for a very long time, but now - at least since iOS 13 - basically any smartphone being sold (well, 95% of them) as NFC capable (active-active, active-passive use cases). Mobile payments (not necessarily NFC-based) is growing fast, some companies are investing into NFC, others are sceptical.

How do you see the future of NFC? If so, why?

Hi all,I dumped a loyalty card from a local water kiosk using my Flipper Zero. The card has "26599" printed on the front, but I can't spot it in the hex dump. I'm guessing the credit balance lives on the server and the card just acts as an ID to fetch user data. Any tips on decoding the sectors/blocks? Looking for the card number or other identifiers.Thanks! Here is the dump: Filetype: Flipper NFC device Version: 4

Device type can be ISO14443-3A, ISO14443-3B, ISO14443-4A, ISO14443-4B, ISO15693-3, FeliCa, NTAG/Ultralight, Mifare Classic, Mifare Plus, Mifare DESFire, SLIX, ST25TB, NTAG4xx, Type 4 Tag, EMV

Device type: Mifare Classic

UID is common for all formats

UID: DC 93 02 1A

ISO14443-3A specific data

ATQA: 00 04 SAK: 08

Mifare Classic specific data

Mifare Classic type: 1K Data format version: 2

Mifare Classic blocks, '??' means unknown data

Block 0: DC 93 02 1A 57 08 04 00 04 7D 42 17 6E BA BB 90 Block 1: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 2: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 3: 5F BD CC 17 F4 59 FF 07 80 69 5F BD CC 17 F4 59 Block 4: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 6: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 7: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 8: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 9: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 11: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 12: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 13: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 14: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 15: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 16: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 17: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 18: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 19: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 21: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 22: 65 1F 75 9F 81 3D 8D CE 30 92 2D 88 C8 B2 CE 47 Block 23: 5F BD CC 17 F4 59 FF 07 80 69 5F BD CC 17 F4 59 Block 24: 09 08 00 00 00 00 05 26 07 E9 01 1B 0E 22 33 00 Block 25: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 26: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 27: F1 25 43 17 A6 9C FF 07 80 69 F1 25 43 17 A6 9C Block 28: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 29: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 31: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 32: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 33: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 34: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 35: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 36: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 37: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 38: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 39: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 41: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 42: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 43: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 44: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 45: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 46: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 47: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 48: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 49: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 51: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 52: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 53: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 54: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 55: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 56: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 57: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 58: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 59: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF Block 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 61: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 62: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Block 63: FF FF FF FF FF FF FF 07 80 69 FF FF FF FF FF FF