Title: Saving Tags
Description: Store scanned NFC tags as Flipper-compatible files
URL: /v2.1/nfc/saving/
Version: v2.1
Section: NFC
Search index: /search-index.json

# Saving Tags

> Store scanned NFC tags as Flipper-compatible files

## On this page

- [Prerequisites](#prerequisites)
- [Steps](#steps)
- [Chameleon Ultra Saves](#chameleon-ultra-saves)
- [Verify](#verify)
- [Troubleshooting](#troubleshooting)
- [FAQ](#faq)

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## Prerequisites
- A PN532 or Chameleon Ultra enabled build.
- SD card mounted with free space.
## Steps
-
Scan a tag. Complete the scan process so the popup shows results.
You should see the Save button enabled once data is cached.
-
Tap Save. Select Save in the scan popup.
You should see the title change to “Saving…” and the button disable while GhostESP writes the file.
-
Wait for confirmation. Leave the device alone until it reads “Saved!”.
You should see the title change if the save fails (for example, “Save Failed!”).
-
Repeat as needed. Saved files remain accessible even after you leave the scan popup.
You should see the filename follow the pattern <Model>_<UID>.nfc in /mnt/ghostesp/nfc/.
## Chameleon Ultra Saves
- Use the CLI. After finishing chameleon scanhf, stay in the terminal and run chameleon savehf <name>. Files land in /mnt/ghostesp/nfc/.
- Name files clearly. Pick short descriptive filenames without spaces, for example office_door.
- Verify later. Saved Chameleon dumps can be copied to a PC from your SD Card exactly like PN532 captures.
## Verify
- Browse the SD card and confirm the new file exists with the expected timestamp.
- Re-open the scan popup and use More to ensure details still match the saved dump.
- Optional: load the .nfc file in a Flipper Zero to confirm compatibility.
## Troubleshooting
- Save button disabled. Re-scan the tag and wait for the title to show “NFC Tag”.
- “No SD card” error. Check card seating and filesystem. The path /mnt/ghostesp/ must be writeable.
- File overwriting: GhostESP auto-generates names and will overwrite if the same model/UID is scanned repeatedly.
## FAQ
- Can I save after removing the tag? Yes. Once the scan completes, the device keeps data in RAM, allowing offline saves.
- What if the tag is MIFARE Classic? GhostESP saves all recovered sectors and keys, so you can reopen the file later without re-running the dictionary attack.
- Where are the files stored? Under /mnt/ghostesp/nfc/.