{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/BasilSkyWalk/echopod/blob/4013ba0151642f8cad67e4f9837e5fb5ce6d763e/docs/user-guide.md",
    "https://github.com/BasilSkyWalk/echopod/blob/4013ba0151642f8cad67e4f9837e5fb5ce6d763e/CMakePresets.json",
    "https://github.com/BasilSkyWalk/echopod/blob/4013ba0151642f8cad67e4f9837e5fb5ce6d763e/platform/device/CMakeLists.txt",
    "https://github.com/BasilSkyWalk/echopod/blob/4013ba0151642f8cad67e4f9837e5fb5ce6d763e/tools/make_image.py"
  ],
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "Replacement firmware for the Snowsky (FiiO) Echo Mini 8 GB player. The stock update image is HIFIECnn.IMG, and cmake --preset release followed by cmake --build --preset release writes build/release/HIFIEC90.IMG.",
  "description_zh": "Snowsky（FiiO）Echo Mini 8 GB 播放器的替代固件。输入是原厂更新镜像 HIFIECnn.IMG；依次执行 cmake --preset release 和 cmake --build --preset release 会写出 build/release/HIFIEC90.IMG。",
  "entry_url": "https://awesomerea.org/resources/echopod-echo-mini-firmware-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/echopod-echo-mini-firmware-case/",
  "evidence_url": "https://github.com/BasilSkyWalk/echopod/blob/4013ba0151642f8cad67e4f9837e5fb5ce6d763e/README.md",
  "group": "cases",
  "id": "echopod-echo-mini-firmware-case",
  "json_url": "https://awesomerea.org/resources/echopod-echo-mini-firmware-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/echopod-echo-mini-firmware-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/echopod-echo-mini-firmware-case/index.md",
  "name": "EchoPod: replacement firmware for the Snowsky Echo Mini 8 GB",
  "name_zh": "EchoPod：Snowsky Echo Mini 8 GB 替代固件",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirements": [
    "The 8 GB Snowsky Echo Mini uses HIFIECnn.IMG update images; FiiO 3.7.0, 3.9.0 and 4.0.0 are tested starting points. EchoPod rejects the 512 MB model’s MINIVnnn.IMG file.",
    "The release preset builds HIFIEC90.IMG. The project describes early development and reports testing on one player.",
    "EchoPod is GPL-3.0-or-later. Bundled Inter and Noto CJK fonts use SIL OFL 1.1; libmad uses GPL-2.0-or-later."
  ],
  "requirements_zh": [
    "8 GB 的 Snowsky Echo Mini 使用 HIFIECnn.IMG 更新镜像；FiiO 3.7.0、3.9.0 和 4.0.0 是已测试的起始版本。EchoPod 拒绝 512 MB 型号的 MINIVnnn.IMG 文件。",
    "发行预设构建 HIFIEC90.IMG。项目处于早期开发阶段，报告在一台播放器上测试。",
    "EchoPod 采用 GPL-3.0-or-later。随附的 Inter 和 Noto CJK 字体采用 SIL OFL 1.1；libmad 采用 GPL-2.0-or-later。"
  ],
  "targets": [
    "firmware"
  ],
  "url": "https://github.com/BasilSkyWalk/echopod",
  "verification": "source-reviewed",
  "verified_at": "2026-11-03"
}