Mtksu Failed: Critical Init Step 3 Hot
The primary security loophole exploited by mtk-su is tracked globally as . This vulnerability was a massive oversight in MediaTek’s Command Queue (CMDQ) driver, allowing any standard local app to read and write directly to physical memory addresses. MediaTek deployed a mandatory security patch to hardware vendors to mitigate this flaw. If your device has a security patch level dated March 2020 or later, your kernel has likely been hardened against this specific memory manipulation. When mtk-su tries to force a memory hook during Step 3, the patched driver actively rejects it. 2. Strict SELinux Enforcement Policies
The binary is strictly optimized for specific MediaTek ARMv8 (64-bit) chipsets (e.g., MT6735, MT6762, MT6765). Attempting to run it on newer MTK chipsets (like Dimensity series) or unsupported 32-bit legacy platforms will drop an initialization fault. 3. Strict SELinux Enforcement or Directory Restrictions
Enable to prevent wireless radios from generating thermal spikes. mtksu failed critical init step 3 hot
# Push the binary to the only writable, executable user space adb push mtk-su /data/local/tmp/ # Move into the folder and grant executive privileges cd /data/local/tmp chmod 755 mtk-su # Execute the binary ./mtk-su Use code with caution.
Step 3 failing specifically in "hot" mode is not a random bug. It is a combination of timing, security, and protocol issues. Here are the primary causes: The primary security loophole exploited by mtk-su is
: If you are running the tool via ADB, ensure the binary has the correct permissions by running: chmod 755 mtk-su Some users report that repeating this command or trying it several times eventually allows the process to bypass the initialization error.
: If SELinux (Security-Enhanced Linux) is set to a strict "Enforcing" mode that blocks the specific memory operations required by the exploit, the initialization will fail. If your device has a security patch level
: A newer method that works at the kernel level, making it harder for apps to detect that the device is rooted. Should you root your Android device? Pros and cons - McAfee
Some manufacturers (like Oppo, Vivo, or newer Samsung models) implemented additional kernel protections that prevent the tool from finding the required memory offsets. Troubleshooting & Fixes If you encounter this error, try these steps in order: 1. Toggle "64-bit Mode"
: Some community members suggest enabling Airplane Mode or disabling Wi-Fi/Bluetooth before running the exploit to reduce background system processes that might interfere with the initialization.
Use the to flash the older firmware to your MediaTek device.