The application is designed for advanced users who understand what they are doing and why. Please do not write negative reviews if you do not want to read the description of how to work with the application. We will be happy to advise you on any questions. Use the contact form on our website.

Designed to be used with an external ACS Wireless Card Readers only.
The app can read and write MIFARE® Classic 1k/4k and Ultralight cards.

To read a MIFARE® Classic card:

1. Create a text file with authentication keys. Put the keys for each sector to a new line: KeyASector0, KeyBSector0, KeyASector1, KeyBSector1 etc. Have a look at the example screenshot.
2. Put the file to /MIFARE/auth.keys of your Android device.
3. Connect your ACR122U NFC Reader to your Android device with a cable.
4. Supply a card to the NFC reader.
5. The dump of your card will be saved to /MIFARE/READ/MIFARE_CLASSIC_1K/[UID].dump file, where UID - is the id of your card.

To write a MIFARE® Classic card:

1. Create a text file with authentication keys. Put the keys for each sector to a new line: KeyASector0, KeyBSector0, KeyASector1, KeyBSector1 etc. Have a look at the example screenshot.
2. Put the file to /MIFARE/auth.keys of your Android device.
3. Connect your ACR122U NFC Reader to your Android device with a cable.
4. Put the dump of your card to /MIFARE/WRITE/MIFARE_CLASSIC_1K/[UID].dump file, where UID - is the id of your card.
4. Supply the card to the NFC reader.

The process of reading and writing MIFARE® Ultralight cards is the same except that you do not need to supply auth.key as these cards do not support authentication. Use /MIFARE/*/MIFARE_ULTRALIGHT folders to read and write dump files.

Feel free to contact us if your have questions or need any modifications to be done to this app.

MIFARE® is a registered trademark of NXP Semiconductors.