125 kHz RFID

Reading 125 kHz RFID cards

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Flipper Zero allows you to read, save, and emulate 125 kHz RFID cards. A 125 kHz RFID card is a transponder that stores a unique identification number. When scanned with a reader, a 125 kHz card transmits its ID number. If the card has the supported protocol, Flipper Zero can read and save the ID number.
On this page, you’ll learn how to read, save, and emulate 125 kHz RFID cards with your Flipper Zero.
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Supported protocols
Flipper Zero can read 125 kHz RFID cards with the following protocols:
EM-Micro EM4100
EM-Micro EM4100/32
EM-Micro EM4100/16
HID H10301
IDTECK Idteck
Motorola Indala 26
Kantech IoProx XSF
AWID
FECAVA FDX-A
ISO FDX-B
Generic HID Prox
Generic HID Ext
Farpointe Pyramid
Viking
Jablotron
Paradox
PAC Stanley
Keri
Gallagher
Honeywell Nexwatch
Electra
Securakey
Guardall G-Prox II
Noralsy
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How to read 125 kHz cards
To read and save the 125 kHz card’s data, do the following:
1
Go to Main Menu -> 125 kHz RFID.
2
Press Read, then hold the card near your Flipper Zero’s back.
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<div class="warning flipper-callout">
    <div class="callout-header"></div>
    Don’t move the card while reading. The reading process might take up to several seconds because Flipper Zero switches codings and tries to match the card’s protocol with the list of supported protocols. 
</div>
<div class="warning flipper-callout">
    <div class="callout-header"></div>
    Don’t move the card while reading. The reading process might take up to several seconds because Flipper Zero switches codings and tries to match the card’s protocol with the list of supported protocols. 
</div>
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While reading, Flipper Zero switches between ASK and PSK codings every 3 seconds to read data from the 125 kHz RFID card.
Flipper Zero switches codings every 3 seconds
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3
Once the reading is finished, you’ll see the card’s data on the screen.
The captured data is displayed on the screen
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4
To save the card, go to More -> Save.
5
Name the card, then press Save.
If reading failed
The card might be using NFC technology. -> Read the card with the NFC application.

Flipper Zero switches codings every 3 seconds. Some cards might not be read because it might require up to 10 seconds to read data. -> Read the card with a preselected ASK or PSK coding.

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Reading with a preselected coding
Flipper Zero allows you to read 125 kHz RFID cards with a preselected ASK or PSK coding.
To read and save the 125 kHz card’s data with a preselected coding, do the following:
1
Go to Main Menu -> 125 kHz RFID -> Extra Actions.
2
Select Read ASK or Read PSK.
3
Hold the card near your Flipper Zero’s back.
4
After reading, go to More -> Save.
5
Name the card, then press Save.
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Emulating 125 kHz RFID cards
Flipper Zero can emulate saved 125 kHz RFID cards by doing the following:
1
Go to Main Menu -> 125 kHz RFID -> Saved.
2
Select the card you want to emulate, then press Emulate.
With Flipper Zero, you can emulate saved 125 kHz cards
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3
Hold your Flipper Zero near the reader, the device’s back facing the reader.
While emulating a 125 kHz card, hold your Flipper Zero near the reader
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125 kHz RFID

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