Gen3 4 Byte UID S70 4K Magic Key Fob

Rated 5.00 out of 5 based on 1 customer rating

Original price was: $5.99.Current price is: $4.79.

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	ISO14443A
UID Length	4 Bytes
Memory	4KB
Device Support	ACR122U, iCopy-XS, PN532, Proxmark3 X, Chameleon Ultra

Software

Android App	MTools BLE
iOS App	MTools BLE

UID Changeable	Yes (Backdoor Command)
Working Temperature	-20°C-70°C
Protocol	ISO14443A
UID Length	4 Bytes
Memory	4KB
Device Support	ACR122U, iCopy-XS, PN532, Proxmark3 X, Chameleon Ultra
Android App	MTools BLE
iOS App	MTools BLE

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 RDV4, 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.

How to PN532 work on Bluetooth for Android and iOS

By Proxmark3 RDV4, 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 Gen3 4 Byte UID S70 4K Magic Key Fob

5.0

Based on 2 reviews

5 star	100	100%
4 star		0%
3 star		0%
2 star		0%
1 star		0%

1-2 of 2 reviews

David Lee
Reviewer

March 3, 2023

Rated 5 out of 5
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)
John Smith
Reviewer

February 12, 2023

Rated 5 out of 5
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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Gen3 4 Byte UID S70 4K Magic Key Fob

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How to deliver the virtual products?

The virtual products are delivered by email in time when order with only virtual products.

What are the shipping options MTools Tec offers?

We offer both standard and expedited shipping options for our customers. The delivery times may vary depending on the shipping address.

Can I track my shipment?

Yes, once your order has been dispatched, we will send you a shipping confirmation email with your tracking number. You can use this number to track your shipment’s progress.

How long does it take to deliver my order?

The delivery time varies depending on your location and the chosen shipping option. Typically, it takes about 5-10 business days for standard shipping and 2-5 business days for expedited shipping.

Are there any shipping restrictions?

Shipping is usually available to all parts of the world. However, restrictions may apply to certain countries or regions due to international laws or shipping carrier limitations.

What should I do if I haven’t received my shipment yet?

If you haven’t received your order within the expected delivery timeframe, please contact our customer support team. We will help to track your shipment and provide updates.

What if my order arrives damaged?

If your order arrives damaged, please contact our customer support immediately. We will initiate the return process and take necessary steps to rectify the situation.

Can I change the shipping address after my order has been placed?

Depending on the status of your order, it may be possible to change the shipping address before the package dispatched oversea. Please contact our customer support as soon as possible to request changes.