CUID NFC Tag Sticker UID Changeable NFC Phone Sticker
Model: MTB-NT001
Material:Paper, PET etc.
Frequency: 13.56MHz
Size: 25mm/30mm/35mm/45mm, or customized
Chip: NTAG213/215/216 etc
Protocol: ISO/IEC 14443A
Printing: Full color custom printing
Surface: Glossy/Matte
Application: Access control, phone sticker etc
MOQ: 500pcs
Description

CUID NFC Tag UID Changeable 13.56MHz On Metal C-UID NFC Tag M1 S50 Block 0 Writable NFC Stickers Manufacturer
A C-UID NFC tag (Changeable UID NFC tag) is a special type of NFC sticker or card that allows users to modify its Unique Identifier (UID)—unlike standard NFC tags, which have a fixed, unchangeable UID. C-UID NFC tags offer flexibility, making them perfect for advanced NFC applications.
Features of C-UID NFC Tags
UID Rewritable
Change the CUID NFC tag’s unique ID multiple times for dynamic applications. All blocks (including Block 0) can be re-written.
Anti-metal & 3M Adhesive
Easy to stick to any surface, can be attached to the back of the phone. Highly customizable size, shape, and printing.
Reusable & Versatile
For duplicating Mifare Classic 1K 4-byte access control cards. Works with MWT Mifare windows tool, not for MCT Mifare Classic tool.
Easy to Rewrite
Use ProxMark3 (Magic Chinese Guy function) or libnfc to change UID. Uses "backdoor" technique to change UID.
NFC Phone Sticker Video
UID Tag VS. CUID Tag
This card works the same as the normal IC cards, for 1K S50 standard. Only the Sector 0 Block Zero which is known as the Serial Number/Manufacturers Block(Chip CUID) could be programmed to any UID you want.
CUID Tag
Rewritable anti-shielding tag can repeatedly erase and write 0 sectors. It can be used when the UID card copy is invalid, can bypassed firewall.
UID Tag
Ordinary copy tag, you can repeatedly erase and write 0 sectors, it is mainly used in IC card copy, it will fail if it encounters a card reader with a firewall.
HF RFID NFC tag structure

Specification
Item name | Custom Logo CUID NFC Tag UID Changeable Phone Sticker Wholesale |
Model | MTB-NT001 |
Material | PVC, PET, Paper |
Size | Round: Dia 25mm/30mm/35mm/75mm; Square: 25*25mm, 30*30mm,75*75mm; Rectangle: 15*20mm, 15*30mm, 85.5*54mm; or Customized size. |
Frequency | HF 13.56MHz |
Chips | NTAG213, NTAG215, NTAG216, S50, S70, Ultralight etc. |
Protocol | ISO 14443A |
Read Distance | 1~10cm (depend on reader & environment) |
Write/Read Times | >100 000 times |
Chip program | Encode/lock/encryption will be available as well (URL ,TEXT ,Number etc). |
Printing | Full color printing |
Applications | Access control, Social media share, Cell phone sticker etc |
Package | 100pcs per box, 2000pcs per carton/customizable |
MOQ | 500pcs with customer design print. |
Applications
NFC tags are widely used in contactless payments, smart access control, anti-counterfeiting, digital menus, e-business cards, smart home, social sharing etc. Custom MTOB RFID Products Now!

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