Device compatibility
The website build targets ARM64 Android devices, Android 8.0 or later. Samsung SM-S938B is ARM64. Other architectures require a matching build; compatibility is not assumed.
Check before installing
Download only the signed file linked below. Compare the published SHA-256. Android asks you to authorize installation from your browser; no protection should be bypassed.
Updates preserve data
A release signed with the same signing key can update an existing matching release. A Debug installation has a different certificate: do not uninstall or clear its data to force a release update. Keep using the matching Debug build for that test device.