Failed Critical Init Step 3 High Quality | Mtk-su

Notice the pattern: Patch date is king. For the technically curious, “step 3” in mtk-su roughly corresponds to the do_root function after the selinux_set_root call. The exploit uses a technique called arbitrary kernel read/write to modify the current task’s credentials ( cred structure). Step 3 fails when the kernel’s commit_creds() function returns an error or when the kernel’s task_struct validation detects an inconsistency—like a UID that doesn’t match expected security capabilities.

adb push mtk-su /data/local/tmp/ adb shell chmod 755 /data/local/tmp/mtk-su While mtk-su attempts to work around SELinux, you can help it by setting SELinux to permissive—though this often requires root itself (a chicken-and-egg problem). If you have an unlocked bootloader, flash a permissive kernel. If not, try: mtk-su failed critical init step 3

If you see this error message in your terminal or command prompt, your exploit attempt has failed. But understanding why this happens is the first step to potentially fixing it—or accepting the limitations of your device. Notice the pattern: Patch date is king

adb shell setenforce 0 (Note: On stock ROMs, this usually fails without root.) mtk-su supports arguments that can help bypass step 3 failures. Try: Step 3 fails when the kernel’s commit_creds() function