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

Another common cause is using the wrong binary variant for your device. mtk-su typically offers two versions:

: Enable Developer Options on your phone, turn on "OEM Unlocking," and execute fastboot oem unlock using a computer.

The mtk-su tool is a specialized command-line binary developed by developer diplomatic on the XDA Forums . It targets a severe security vulnerability (CVE-2020-0069) found within the kernel drivers of several MediaTek (MTK) ARMv8 chipsets. The vulnerability allows a regular user application to read and write directly to physical memory addresses.

The system kernel has patched the exploit, blocking UID shifts. Step-by-Step Fixes for "Failed Critical Init Step 3" 1. Correct the Binary File Path mtk-su failed critical init step 3

On Android 6.0 Marshmallow and newer, Verified Boot and dm-verity modules prevent modifications to read-only partitions (such as system and vendor). This means even with mtk-su, you may not be able to make permanent changes to system files.

There is no workaround if the kernel vulnerability no longer exists. Proceed with unlocking the bootloader if you need root access.

The most definitive way to resolve a "step 3" error is to rollback the device's operating system to an earlier version released before March 2020. Another common cause is using the wrong binary

If you see androidboot.selinux=enforcing with extra security flags (e.g., avb ), the kernel might have hardened the exploit path.

Attempting to run a 32-bit binary on a 64-bit architecture (or vice-versa) without proper libraries. 🛠️ Potential Fixes

I’m trying to get temporary root on my MediaTek device using mtk-su , but I keep getting stuck at: Step-by-Step Fixes for "Failed Critical Init Step 3" 1

The error occurs when the MediaTek-su (mtk-su) exploit tool is unable to initialize correctly on an Android device . This is common on devices like the Amazon Fire Tablet and Oppo smartphones when attempting to gain temporary root access . Understanding the Error

The error typically occurs when the mtk-su tool—a script used for gaining bootless root access on MediaTek-based Android devices—encounters an environment it cannot exploit. Key Causes