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# FiiO FT1 and FT1 Pro Official Issues: Loose Pivot Screws and Low-Frequency Distortion
- URL: https://www.soundpathlab.com/fiio-ft1-ft1-pro-loose-screw-distortion-issues/
- Published: 2026-08-08T14:32:25.000Z
- Updated: 2026-08-20T15:05:51.000Z
- Description: FiiO officially acknowledges early-batch FT1/FT1 Pro pivot screw loosening and rare FT1 Pro low-frequency distortion, with production and service actions.
- Author: SoundPath Lab
- Tags: Product Issues

> **Manufacturer-confirmed issues**  
> **SPL-FII-FT1-001 — manufacturer-response**  
> **SPL-FII-FTP-002 — manufacturer-response**

FiiO has publicly acknowledged two separate quality issues in the FT1 series. The company describes corrective production action and free after-sales support, but SoundPath Lab has not found independent post-change verification sufficient to mark either issue resolved-verified.

## SPL-FII-FT1-001 — early-batch pivot screw loosening

| Field                    | Details                                                                                                        |
| ------------------------ | -------------------------------------------------------------------------------------------------------------- |
| Products                 | FiiO FT1 and FT1 Pro                                                                                           |
| Affected scope           | Some early production; exact serial range and failure rate Unknown                                             |
| Trigger                  | Long-term use                                                                                                  |
| Symptom                  | Pivot-joint screws may loosen and the holder may detach                                                        |
| Manufacturer explanation | Adhesive failure in the pivot-joint fixation on a small number of early-batch units                            |
| Manufacturer action      | Structure changed and adhesive process removed for batches produced from November 20, 2024                     |
| Service                  | Seller support first; FiiO says authorized sellers can provide free screws and FiiO will bear relevant freight |
| Status                   | manufacturer-response                                                                                          |
| Last checked             | August 8, 2026                                                                                                 |

FiiO states that the problem was “completely resolved” in production from November 20, 2024\. That is a manufacturer resolution claim, not independent verification. Buyers of used or older stock should not infer the production date from purchase date alone.

## SPL-FII-FTP-002 — low-frequency noise or distortion

| Field                    | Details                                                                                                                                    |
| ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------ |
| Product                  | FiiO FT1 Pro                                                                                                                               |
| Affected scope           | FiiO says rare; exact rate and batch range Unknown                                                                                         |
| Trigger                  | Extremely low-frequency content and large diaphragm excursion                                                                              |
| Symptom                  | Low-frequency noise or distortion                                                                                                          |
| Manufacturer explanation | Individual diaphragms may be slightly less taut; the low resonance-frequency design can allow large excursion at extremely low frequencies |
| Manufacturer action      | Inventory inspection, individual frequency-sweep listening tests and tighter production inspection                                         |
| Service                  | Free maintenance through seller or FiiO support with proof of purchase                                                                     |
| Status                   | manufacturer-response                                                                                                                      |
| Last checked             | August 8, 2026                                                                                                                             |

FiiO notes that the sealed front cavity created when the headphone is worn can damp the behavior. This does not prove that every reported noise is a defect; evaluation should be performed while worn and under repeatable conditions.

## Buyer guidance

- For FT1 or FT1 Pro, inspect the pivot screws and holder before the return window closes.
- For older or used stock, ask for production-date evidence if the seller claims it is from the revised run.
- Test FT1 Pro at sensible volume while worn; do not use dangerous SPL solely to provoke driver excursion.
- Record the track, frequency, channel, volume setting and whether the symptom repeats before requesting service.
- Do not generalize either issue to every unit; FiiO describes limited scope but gives no incidence data.

## Verification and unknowns

**Confirmed:** FiiO acknowledges both phenomena and describes production/service actions.  
**Unknown:** serial-number ranges, failure rates, regional stock mix and independent verification of the post-November 20 production claim.  
**Not claimed:** no safety recall, product-wide defect rate or universal failure has been announced.

## Source

- [FiiO: Explanation and Solutions for Issues Related to the FT1 Series Headphones](https://www.fiio.com/newsinfo/1002816.html?ref=soundpathlab.com) — official manufacturer notice dated February 14, 2025.

## Revision history

- **August 8, 2026:** Initial publication; separated the pivot-joint and FT1 Pro low-frequency phenomena into distinct issue IDs and retained manufacturer claims as unverified resolution statements.

Related: [Product Issues & Limitations](https://www.soundpathlab.com/product-issues-limitations/) · [FiiO FT1 vs FT1 Pro Buying Guide](https://www.soundpathlab.com/fiio-ft1-vs-ft1-pro-buying-guide/)