If your device is 64-bit, try both the arm64 and arm (32-bit) binaries provided in the mtk-su zip. In some cases, the 32-bit binary works better even on 64-bit kernels.
If downgrading is impossible or too risky, abandon mtk-su . It is an outdated, software-based exploit. Modern Android modders use hardware-level bootROM (BROM) exploits instead. The best alternative is .
Elias leaned back. Why would the TEE ignore a handshake? mtk-su failed critical init step 3
Use the official MediaTek Smart Phone Flash Tool (SP Flash Tool) to clean-install the old firmware package over your current version.
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. If your device is 64-bit, try both the
It allows you to unlock your bootloader, read/write partitions, and patch your boot image with Magisk for permanent root access. Summary Checklist Current Status Recommended Action Security patch is before March 2020 Double-check 32-bit vs 64-bit architecture binaries. Security patch is after March 2020 Downgrade firmware via SP Flash Tool or use MTK Client . Device is a newer MTK chip (e.g., Dimensity) Stop using mtk-su entirely; use hardware BROM tools.
Elias rubbed his eyes, staring at the output log of his latest attempt to root the MediaTek tablet. He had done this a hundred times. MTK devices were tricky, fickle beasts, but he knew their language. He knew how to coax the bootloader open, how to whisper the right exploits to the processor. It is an outdated, software-based exploit
[+] Sending payload... [+] Handshake complete. [+] Initializing mtk-su...
"mtk-su failed critical init step 3" is a common failure message in the MediaTek-su (mtk-su)
"mtk-su: failed critical init step 3" is a known issue encountered when using the
If your device has a 64-bit kernel but you are running a 32-bit shell environment (common when using some terminal emulators from the Play Store), the exploit may miscalculate memory offsets, leading to a step 3 failure. Always use a 64-bit terminal or ADB from a 64-bit platform tools build.