4 Byte UID Changeable 1K S50 Chinese Magic Card

Name: 4 Byte UID Changeable 1K S50 Chinese Magic Card
Brand: MTools Tec
SKU: MT_CARD
Availability: InStock
Rating: 4.70 (10 reviews)

Rated 4.70 out of 5 based on 10 customer ratings

10 reviews

$1.80 – $22.50

Mifare 1K 4 Byte UID Changeable Card.

Card Type

Amount

Clear

Specifications

Card Type	UID, CUID, UFUID
Protocol	ISO14443A
Amount	1 pc, 5 pcs, 10 pcs
UID Length	4 Bytes
Working Frequency	13.56MHz
Memory	1KB
Card Type	UID, CUID, UFUID	Protocol	ISO14443A
Amount	1 pc, 5 pcs, 10 pcs	UID Length	4 Bytes
Working Frequency	13.56MHz	Memory	1KB

Card Features

Backdoor Command	Yes
Backdoor Command	Yes

Environmental Performance

Working Temperature	-20°C-70°C
Working Temperature	-20°C-70°C

Weight	0.1 kg
Dimensions	8.55 × 5.3 × 0.08 cm
Card Type	UID, CUID, UFUID
Protocol	ISO14443A
Amount	1 pc, 5 pcs, 10 pcs
UID Length	4 Bytes
Working Frequency	13.56MHz
Memory	1KB
Backdoor Command	Yes
Working Temperature	-20°C-70°C

Ordinary card VS Chinese magic card

How to clone an 85.5 x 54 x 0.8mmcard to a CUID card?

Block 0 of the CUID card is changeable, so you just need to write block 0 or full dump to the CUID card with the NFC device.

If the BCC byte or SAK byte is invalid, MTools will not write block 0 to prevent damaging the card.

How to clone a card to UID card and UFUID card?

Both the UID card and UFUID card has backdoor command, so you can use PN532, ACR122U or Proxmark 3 to write dump back to data without keyA or keyB.

Command line to write dump file:

nfc-mfclassic W a u card.mfd

Command line to change UID:

nfc-mfsetuid 11223344

1 click to clone on Android:

Check out tutorial with MTools >>

What’s the difference between UID card and UFUID card?

Both types of cards are responded to the backdoor commands which can be read, written, or cloned without key verification.

After locking, the UFUID card can be changed to an ordinary Mifare Classic Card. This operation cannot be reversed currently.

10 reviews for 4 Byte UID Changeable 1K S50 Chinese Magic Card

4.7

Based on 10 reviews

5 star	80	80%
4 star	10	10%
3 star	10	10%
2 star		0%
1 star		0%

1-5 of 10 reviews

Anonymous
Verified owner

Featured Review

August 8, 2022

Rated 5 out of 5
Verified review - view original
Takes 5 days to my door step, very fast.

(0) (0)
Daniel Kim
Verified owner

February 20, 2023

Rated 3 out of 5
I was able to successfully clone my cards using this Chinese Magic Card. It works as advertised.

(0) (0)
Mike Williams
Verified owner

February 1, 2023

Rated 4 out of 5
I was able to clone my cards without any issues using this Chinese Magic Card. Very pleased with my purchase.

(0) (0)
John Smith
Verified owner

January 3, 2023

Rated 5 out of 5
This Chinese Magic Card really works. I was able to clone successfully without any issues!

(0) (0)
Anonymous
Verified owner

December 14, 2022

Rated 5 out of 5
Verified review - view original
Magic cards received and working as expected.

(0) (0)