Mtksu | Failed Critical Init Step 3 Hot
Maps out the Linux kernel memory tables to search for specific entry points.
The exploit often fails if SELinux is set to a strict "Enforcing" mode that blocks the specific memory syscall the tool needs.
: While often associated with "Step 1" errors, "Step 3" can also occur if the binary is running on a 64-bit architecture when it expects 32-bit (or vice-versa), or if the kernel version is too new for the exploit. about.gitlab.com Common Troubleshooting Steps If you encounter this error while following a guide from or using the MTK Easy SU app , try the following: Re-run Permission Commands : Ensure the binary is executable. Users on have found success by running chmod 755 mtk-su mtksu failed critical init step 3 hot
If your security patch is dated after 2020/2021, mtk-su might simply be patched.
The mtk-su tool, developed by developer diplomatic on the XDA Developers Forum and popularized by the Mtk Easy Su GitHub project , provides bootless, temporary root access. It works by exploiting a critical security vulnerability (CVE-2020-0069) present in MediaTek chipsets. Maps out the Linux kernel memory tables to
Checks hardware architecture compatibility (e.g., 32-bit vs 64-bit ARM).
Connect the device to a USB power meter or a hub with LEDs. In "cold" state, the device should draw less than 5mA and enumerate as USB\VID_0E8D&PID_0003 (MediaTek Preloader) only for a split second. It works by exploiting a critical security vulnerability
Why this works: You bypass the "hot" condition entirely, giving the exploit full access to the bootrom before Android initializes any security daemons.
The original mtk-su by Diplomatic is outdated for newer chips. Use the actively maintained mtkclient from GitHub:
When you run mtk-su via an ADB shell or automated apps like mtk-easy-su , the program executes a multi-stage initialization routine: Platform and architecture check. Step 2: Memory space scanning and base address hunting. Step 3: The Exploit Payload Injection (The Race Condition).
: Sometimes the binary lacks the necessary execution permissions in the /data/local/tmp directory. Common Fixes to Try