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mDrive 0.5.18 Preview — Android steering update

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@fademan7 fademan7 released this 16 Oct 14:43
v0.5.18
29de081

mDrive 0.5.18 Preview — Android steering update

This release updates Android only. Keep using the Windows 0.5.17 installer. Existing PC installations do not need an update or restart.

Install

Download mDrive-0.5.18.apk on your Android 13+ phone and open it to update mDrive. Pause the game first; installation restarts the app. Use Android's install permission for your chosen browser/file manager if prompted, and review system security warnings. Do not uninstall the existing app or clear its data.

The APK is non-debuggable and uses the same permanent release signing key as 0.5.17, including the existing signing-key rotation proof for earlier official builds. A data-preserving update and cold launch were verified on the connected test phone.

Steering changes

Phone rotation maps to virtual Xbox Left Stick X, not the car's steering-wheel angle:

Phone rotation Xbox LX
0° 0%
±45° ±50%
±90° ±100%
±120° ±100%
±180° ±100%

Quaternion tracking continues independently through ±180° and beyond. Only controller output saturates. The first launch applies the linear F1 preset once: full stick at 90°, response curve 1, deadzone 0, smoothing 0. Other settings remain unchanged, and later steering customizations are retained.

The driving display shows accumulated Phone angle and normalized LX (-1.00 to +1.00). There is no speed/telemetry steering correction. F1's own gamepad assistance still determines cockpit-wheel animation and vehicle steering.

Controller packets, Wi-Fi, safety/recovery, and PC ViGEm output are unchanged.

Verification and limits

  • Android release tests: 61 passed.
  • PC regression: 49/49 groups passed.
  • Release build and certificate verification passed; lint: 0 errors, 81 warnings.
  • ±190° round-trip, hemisphere flips, threshold jitter, saturation and packet preservation tested synthetically.
  • APK update installation and cold launch verified. Physical steering accuracy and live F1 driving for this build are not yet verified.

See detailed validation. This remains a preview.

Integrity

APK SHA-256: f1d7527b8f789c0c0aad06e7d87d9d224f3d0a4603e8d782c4efc86dcf2a7c82

Release certificate SHA-256: 802297e5be0a38fa84db19cea49f664c9be8895efb1b879f69d72ac447e7dcd5

Download SHA256SUMS.txt. Source is licensed GPL-3.0-only.

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