Case study

FIIL headphones: reconstructing Bluetooth control commands

The FIIL headphone study reconstructs Bluetooth control framing and command behavior from FIIL+ 3.5.2 analysis and headset captures. Its documents cover GAIA, Mate and Doubao command spaces, SPP and BLE GATT transport, connection handshakes and response parsing.

Targets: App · Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-10-26
License (GitHub): CC-BY-SA-4.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Scope: Hardware observations cover one FIIL Key Max headset with firmware 3.0.1.1.
Limits: Other models, custom EQ writes, Doubao voice payloads and OTA are outside the device tests.
License: CC BY-SA 4.0 license.

Cite

BibTeX

@misc{fiil-headphone-protocol-case,
  title = {{FIIL headphones: reconstructing Bluetooth control commands}},
  howpublished = {\url{https://github.com/FNKG9527/fiil-headphone-protocol}},
  url = {https://github.com/FNKG9527/fiil-headphone-protocol},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/fiil-headphone-protocol-case/}}
}

Plain text

FIIL headphones: reconstructing Bluetooth control commands. https://github.com/FNKG9527/fiil-headphone-protocol (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/fiil-headphone-protocol-case/

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About this entry

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Primary sources

README.md GitHub · FNKG9527/fiil-headphone-protocol · Revision bd862b1
docs/PROTOCOL_PC.md GitHub · FNKG9527/fiil-headphone-protocol · Revision bd862b1