GR III Film Simulation — 胶片模拟实验固件

V9.2 · 参数重启保存修复 / Parameter persistence fix

仅支持 RICOH GR III / GR III HDF，基于官方 2.10。实验预发布。 不支持 GR IIIx / IIIx HDF 或其他机型。

修复

• 修复四款新增 Image Control 的饱和度等参数在关机重开后归零的问题。旧自定义存档与原厂功能共用了 APData11，会被原厂两字节记录覆盖；V9.2 使用独立 APData12，并完整扩展原生记录、缓存、打包和恢复路径到 13 个文件。
• 修复 Still 全量刷新未恢复自定义参数的问题，避免参数页备份/取消把默认值写回存档。
• 保留 V9.1 的 RAW 列表容量修复，以及 Gold 200、Tungsten 800、Ektar 100、Metropolis 四款参考配方、固定槽位、菜单顺序和图标。没有新增颗粒或光晕，不自动改变 WB/ISO。

验证

真机反馈仅确认参数重启保留。 未提供重启次数、各风格/槽位/模式的逐项记录；未完成完整真机矩阵、断电和长期稳定性验收。部分离线测试替代文件系统、堆分配和消息传输，不等同于真实闪存或完整相机调度。

下载与升级

• 固件：gr3-v210-four-films-v9-2.persistence-fix.experimental.bin（30,410,988 字节）。
• SHA256：0e946a4570c5a2a33430e5821d062179f2472efac727b417e66f0b3c175c3911。
• 同时保留 SHA256SUMS.txt、third-party-notices-v9-2.zip 和两份 JSON 记录。
• 将固件改名为 fwdc239b.bin 放到 SD 根目录，按仓库 README 中的更新步骤安装。相机版本仍显示 2.10，以下载文件 SHA256 区分版本。
• 首次升级会初始化新的自定义存档。请重新设置一次参数，再验证关机重开。旧版已经被覆盖的数值无法恢复。 降级、任意第三方补丁和重新绑定风格的存档兼容性未保证。

Gold 包含 Andrea Volpato 的 spektrafilm kodak_gold_200 profile 经修改的衍生色彩数据，保留 CC BY-SA 4.0 署名和许可附件。完整固件未统一授予开源许可。本包为非官方实验固件，按现状提供；完整风险、责任与第三方来源见仓库 README。

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English

Experimental V9.2, based on official 2.10, for GR III / GR III HDF only. It fixes custom Image Control parameters resetting after restart. The old custom record collided with the stock two-byte APData11 record. V9.2 uses APData12 and extends native allocation, bounds, cache, bundle, import and reset paths to 13 records. It also restores all nine custom controls in the Still bulk-refresh snapshot, preventing detail-page backup/cancel from writing neutral values back.

The V9.1 RAW list capacity fix and the four reference looks remain in place. The reference package passes eleven existing ARM suites and two final-decoded persistence regressions. Production Web builds pass all thirteen ARM suites. Checks cover 972 setters, both writer orders, eight banks and 864 non-neutral control positions, thirteen-file bundle/import/cache restoration, eight failure cases, 54 Still transitions, 18 factory cases and six detail cancellations. Independent decoders and complete payload/container verification agree.

On 2026-10-09, the maintainer reports that parameters remain after restarting the camera with this exact package. This is limited user-reported feedback. No complete device matrix, restart count, power-interruption test or long-term run record is supplied. Offline tests substitute selected services; they do not execute real flash hardware or full camera scheduling.

Download the BIN and accompanying checksums, notices and JSON records. Rename the BIN to fwdc239b.bin in the SD root. The first upgrade initializes the new custom record: set parameters again before testing retention. Overwritten old values cannot be recovered. The camera still displays 2.10. Use the SHA256 above to identify V9.2. Downgrade and third-party patch compatibility are not guaranteed.

Preserve the included spektrafilm attribution and CC BY-SA 4.0 notices. No blanket licence is granted to the complete firmware. This is an unofficial experimental release, supplied as is; the README retains the full risks, limitations and third-party attribution.