Mtk-su Failed Critical Init Step 3 ((exclusive))

: The exploit, which targets vulnerability CVE-2020-0069 , has failed a vital setup phase . Why it happens :

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:

Users with devices that auto-upgraded around June 2021 found that mtk-su suddenly stopped working, displaying “Failed critical init step 1” (or step 3), even though the same device had been successfully rooted just months earlier. mtk-su failed critical init step 3

Do not rely solely on automated app interfaces. Run the binary manually through the Android Debug Bridge (ADB) to read the verbose output error log.

Go to and check:

Temporarily disable Google Play Protect and any built-in device battery optimization, as these can sometimes interfere with exploit processes.

This is the safest method for modern MediaTek devices running newer Android patches. : The exploit, which targets vulnerability CVE-2020-0069 ,

Backup

If it says armeabi-v7a , use the version. Using the wrong version frequently causes Init Step 3 failures. Method 2: Downgrade Your Firmware If not, try: Users with devices that auto-upgraded

The tool requires specific Linux kernel memory management layouts. Modified architectures or vendor-specific changes prevent the payload from aligning with target memory registers. Step-by-Step Troubleshooting and Diagnostic Methods

⚠️ Downgrading firmware carries risks, including potentially bricking your device if done incorrectly. Always ensure you have the correct firmware for your exact device model.