MIFARE Classic® Compatible 1K, UID Changeable One Time (Gen2a) - FPC Stickers - Pack of 5
The absolute smallest MIFARE Classic® Compatible 1K chips on the market. At just 8mm (1/32") across, these tags can be placed anywhere. Despite their tiny size, they have perfectly tuned antennas for optimised performance. There are five tags per pack.
More and more access control systems (notably VIGIK® compatible systems in Europe) use detection routines to determine if a badge is Gen1a or Gen2 - and will refuse access to prevent cloned badges being used.
The solution is Gen2a MIFARE Classic® Compatible 1K UID One-Time-Write tags. The UID of the tag can be written one time only. Once written, it cannot be changed - the tag is indistinguishable from an original tag.
Technical Specifications
| Feature |
Information |
Notes |
| Chipset |
MIFARE Classic® Compatible |
|
| Memory Size |
1K |
|
| UID Size |
4 Byte |
|
| UID Modifiable |
✔️ |
UID can be modified one time only
|
| Chip Generation |
Gen 2a (OTW) |
Chipset Generation Guide |
| Packaging |
5 per pack |
Delivered in an anti-static bag |
Write Capabilities
| UID Modifiable |
Unlock Required |
DirectWrite / Block 0 |
One Time Write |
Notes |
| ✔️ |
|
✔️ |
✔️ |
|
Device Compatibility
| Compatibility |
UID |
R/W |
Config |
Notes |
| Flipper Zero |
✔️ |
✔️ |
✔️ |
|
| Proxmark / iCopy-X |
✔️ |
✔️ |
✔️ |
|
| Android & iOS |
✔️ |
✔️ |
✔️ |
Via MTools app |
| LibNFC |
✔️ |
✔️ |
✔️ |
|
| ChameleonUltra |
✔️ |
✔️ |
✔️ |
Via MTools app |
Hands on: See the card in action
IMPORTANT:
The UID of MIFARE Classic® Compatible 1K One Time Write UID tags is comprised of two parts: the UID itself, and the BCC. The BCC is a checksum value calculated from the UID. If the BCC is incorrect, tag will be rejected by the reader.
Most RFID tools, such as the Proxmark, LibNFC, MCT etc automatically calculate the BCC when the UID is modified. If you are modifying the UID by hand, it is vital that the BCC is correctly calculated.
Lab401 cannot provide support or refunds under any circumstances for cards that were 'bricked' due to incorrect UID/BCC configuration.
