Adding 125 kHz cards manually

You can save new cards to your Flipper Zero without reading a physical card. All you need to do is select a protocol and manually enter the card's data. The added card can be emulated or written to a T5577 blank card. On this page, you will learn how to add a new card, edit a saved card, and write data to a T5577 blank card.
Generating 125 kHz RFID cards
You can manually generate virtual cards with the following protocols:
- EM-Micro EM4100
- HID H10301
- 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.
To generate a virtual card, do the following:
- Go to Main Menu → 125 kHz RFID → Add Manually.
- Select the protocol you want to use and press :ok:OK.
- Enter the card's data in hexadecimal, then press Save.

4. Name the card, then press Save.
Editing 125 kHz RFID cards
With your Flipper Zero, you can also edit data of saved and manually added cards by following these steps:
- Go to Main Menu → 125 kHz RFID → Saved.
- Select the saved card you want to edit by pressing :ok:OK, then press Edit.
- Enter new data in hexadecimal, then press Save.
- Enter the new name of the card, then press Save.
Writing to a blank card
You can write saved 125 kHz cards to a T5577 rewritable blank card, which can be programmed to emulate cards with various low-frequency RFID protocols. T5577 may come in different forms and shapes, such as cards, keyfobs, stickers, and animal microchips. Flipper Zero is able to write data with all the supported low-frequency RFID protocols. To write the card, do the following:
- Go to Main Menu → 125 kHz RFID → Saved.
- Select the card you want to write, then press Write.
- Hold your Flipper Zero near the T5577 blank card, the device's back facing the card.

Flipper Zero may show the Successfully written message even when you try to write a read-only card. It may happen if you write the same data that is already present on the read-only card.
If writing failed
- The T5577 blank card might be protected with a password.
- You are trying to write to a read-only RFID card, not a T5577 blank card.
