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paxx12 merged 1 commit into from
Feb 16, 2026
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Update rfid_support.md #289

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4 changes: 3 additions & 1 deletion docs/rfid_support.md
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Expand Up @@ -125,8 +125,10 @@ Use the **NFC Tools** app (iOS/Android) to inspect tags:
**Tag not detected:**
- Ensure tag is NTAG213/215/216 or Mifare Classic 1K
- Position tag within 1-3cm of reader antenna
- Ensure you place on tag on the side next to the U1 housing, which will depend on which side of the printer you load the spool
- If a vendor tag is present, for example Bambu Lab filament tags, this will usually interfere with reading a user-provided tag (you can cover up the vendor tag with foil tape)
- Manually read tag: `FILAMENT_DT_UPDATE CHANNEL=<n>` then `FILAMENT_DT_QUERY CHANNEL=<n>`
- Check `klipper.log` for detection messages
- Check `klippy.log` for detection messages

**OpenPrintTag tags don't work:**
- Expected - OpenPrintTag uses ISO15693 which is not supported by U1 hardware
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