4 Byte UID S70 4K Magic Key Fob

2 reviews

$4.79

SKU: MT-KF-S70-4K-4B Category:
MPN: MT-KF-S70-4K-4B
Brand: MTools Tec

Mifare Classic S70 4K Key Fob with 4 Byte Writable UID.

The RFID Readers supporting this Key Fob are PN532, ACR122U, iCopy-XS, and Proxmark3 X.

Specifications

Protocol

UID Length

Memory

Device Support

, , , ,

Software

Android App

iOS App

UID Changeable

Yes (Backdoor Command)

Working Temperature

-20°C-70°C

Protocol

UID Length

Memory

Device Support

, , , ,

Android App

iOS App

This is the 4 Byte UID changeable Mifare Classic 4k size key fob.

The UID can be modified ONLY with an external device (PN532, PCR532, ACR122U, Proxmark3 X, and iCopy-XS).

The UID cannot be changed with NFC on Android or iOS devices.

Command to Change UID

By All-in-one PN532 or PCR532

The latest features of the MTools Lite app support modifying the UID of the Gen3 7 Byte S70 4K card via Bluetooth PN532 Reader.

MTools Lite App can be downloaded from Play Store and App Store.

The PN532 Reader can be customized with the Bluetooth module. See the tutorial below to know how to make PN532 work with Bluetooth.

By Proxmark3 X or iCopy-XS

hf mf gen3uid --uid 11223344556677

By ACR122U

Windows Program Download Link: PCSC_Mifare_Secure.

Notice: Google Drive may recognize the PCSC Mifare Secure program as a virus cause it can detect the USB devices which it’s necessary to connect the reader. Absolutely it’s a clean and powerful program. Download the zip file with the browser on PC.

2 reviews for 4 Byte UID S70 4K Magic Key Fob

5.0
Based on 2 reviews
5 star
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4 star
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1-2 of 2 reviews
  1. I’ve tried other key fobs before, but this one is by far the best. The 4 Byte UID and ACR122U compatibility make it a top choice!

    (0) (0)
  2. This key fob is great! The 4 Byte UID feature is a huge plus. I was able to easily program it using my ACR122U reader.

    (0) (0)
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4 Byte UID S70 4K Magic Key Fob