Universal SafetyNet Fix v2.4.0 is a Magisk Zygisk module that works around hardware-backed attestation and CTS profile checks used by SafetyNet and Play Integrity on documented Android 8–13 devices. It requires a device profile that can already pass basic CTS attestation.
A Zygisk Attestation Workaround
The module changes selected attestation behavior inside Google Play services, rather than claiming to hide every sign of a modified device.
Attestation Fallback
Its Zygisk component intercepts selected key-attestation requests in Play services so those checks can fall back to basic attestation.
Scoped Model Adjustment
A small device-model change within Play services addresses enforcement tied to models known to support hardware-backed attestation.
Existing Profile Still Matters
It cannot repair an invalid device name, build fingerprint, or security-patch combination needed for basic CTS checks.
Compatibility and Prerequisites
The v2.4.0 README documents Android versions through 13, including Samsung One UI and MIUI. The module uses Magisk's Zygisk implementation. Its installer notes that Android versions below 8 receive only limited functionality, so the full attestation workaround should not be assumed there.
A valid, certified device profile is still necessary for basic CTS attestation. Older devices, custom ROMs, and uncertified stock ROMs may need separate profile correction. The upstream README suggests MagiskHide Props Config only for Magisk v23 and older; that is not a current-version dependency of this module.
Installation
- Use a Magisk installation that provides Zygisk and a device profile capable of passing basic CTS checks.
- Install the v2.4.0 module ZIP in Magisk Manager.
- Enable Zygisk in Magisk settings so the module's Play services component can run.
How the Workaround Operates
According to the project's technical notes, the module registers a replacement keystore provider in the Play services process. For selected SafetyNet attestation requests, it makes hardware key attestation appear unavailable, causing a fallback to basic attestation. The device-model adjustment is also scoped to that process rather than permanently changing the system-wide build fingerprint.
The project says it limits this interception to relevant checks so other key-attestation uses, such as security-key features, are not intentionally disabled. This describes the v2.4.0 implementation, not a guarantee that every application or current Google service will behave the same way.
Limits of an Older Attestation Fix
SafetyNet Attestation has been deprecated in favor of Play Integrity. Version 2.4.0 documents support only through Android 13, and Google can change server-side verdict rules independently of this module. Neither installation nor a passing basic CTS check guarantees a present-day Play Integrity verdict or acceptance by banking, payment, gaming, and other sensitive applications.