If you updated your device and then got the error, the bootloader might have patched the exploit. Use SP Flash Tool with the option to flash an older, vulnerable preloader (e.g., from Android 10 instead of Android 12). After flashing the older preloader, retry mtksu in "cold" mode.
When you attempt to run the binary via an ADB shell or a local terminal emulator, the program runs through sequential phase checks.
Look for a line in the log that says UID: 0 or selinux: permissive ; if you don't see this, the exploit didn't trigger. 3. Verify Version Compatibility mtksu failed critical init step 3 hot
To fix the error, you must first understand the ecosystem. mtksu is not a standard Linux command or a widespread Windows utility. It is a specialized tool—often a script or a binary—used in the underground and developer communities for exploiting MediaTek’s preloader or bootrom interfaces.
If your device cannot be downgraded, mtk-su is completely non-viable for your current Android build. You must use standard, modern root protocols: If you updated your device and then got
The mtk-su tool is a temporary root exploit created by developer diplomatic on the XDA Forums . It targets a kernel vulnerability within the MediaTek (MTK) ARMv8 command queue driver. This vulnerability allows an application in user space to escalate its privileges directly to the root user ( UID 0 ) without unlocking the bootloader or flashing modified firmware images. The Initialization Steps Breakdown
The "MTK SU Failed Critical Init Step 3 Hot" error is a common issue encountered by users trying to root their Mediatek (MTK) based Android devices using the MTK SU tool. This error typically occurs when the tool fails to initialize the device properly, preventing the rooting process from completing successfully. In this guide, we will walk you through the possible causes and provide step-by-step troubleshooting solutions to help you resolve the issue. When you attempt to run the binary via
If your device is too new for the mtk-su exploit, you may need to look at more modern, stable rooting solutions:
Ensure you are using the latest version (currently around ) from the official JunioJsv GitHub Repository or the XDA thread. Older versions often fail on newer kernels. 4. Downgrade Firmware (Advanced)