Sony a6700 Shutter Unlock 0.2.21

Sony a6700 Shutter Unlock

An English, shutter-only Windows app for the Sony a6700 on firmware 2.00.

Download and run

1. Download Shutter6700-0.2.21-dev-Windows-x64.zip and extract the whole folder.
2. Check its SHA-256 against the attached checksums JSON.
3. Connect in Mass Storage (MSC) with battery above 80%, then open Use connected camera.cmd.

The app guides you through five prechecks, a verified backup, approval, readback and USB cleanup. Opening Shutter6700.exe starts the offline preview. Inspection without a firmware write is also included.

After unlocking, enable MENU → Setup → Setup Option → Anti-dust Function → Shutter When Power Off on the camera.

Validation

442 automated tests passed (one skipped), alongside CI, frozen-app checks and native reader/writer emulation. The original engine completed a real-camera unlock; the new interface completed real inspection, backup and cleanup. The new interface's complete physical write lifecycle remains unvalidated. Firmware writes can damage a camera; a sparse backup is not guaranteed brick recovery.

Only the shutter feature and required menu linkage are selected. Matching source and SHA-256 checksums are attached. See the README for the walkthrough and user guide.