: Attempting to run a 32-bit version on a 64-bit system (or vice-versa) can lead to various initialization failures. Unstable Execution
If your device uses a MediaTek chipset that isn’t listed among the supported models, mtk-su may fail with this error. One user with a Koobee Y3 (Android 7.1, SDK 25) reported: “my phone is koobee y3 ,android 7.1 sdk25 cmd display ‘mtk-su failed critical init step 4’”——indicating the device simply wasn’t vulnerable to the exploit. mtk-su failed critical init step 3
The primary trigger for this failure is the . MediaTek released global patches for CVE-2020-0069 in March 2020 . If your device has firmware updated after this date, the operating system has closed the loophole, making it impossible for the binary to initialize its memory override. 2. Protected or Modified Kernels : Attempting to run a 32-bit version on
| Cause | Explanation | |-------|-------------| | | mtk-su works reliably only on patches before mid-2019 (some versions work up to early 2020). | | Wrong architecture | Using ARM64 version on an ARMv7 or x86 device. | | Kernel command line restrictions | Some kernels block the exploit method. | | SELinux enforcing | Not the main issue here, but can affect later steps. | The primary trigger for this failure is the
If you see androidboot.selinux=enforcing with extra security flags (e.g., avb ), the kernel might have hardened the exploit path.