Mtk-su Failed Critical Init Step 3 [top] -
While mtk-su attempts to work around SELinux, you can help it by setting SELinux to permissive—though this often requires root itself (a chicken-and-egg problem). If you have an unlocked bootloader, flash a permissive kernel. If not, try:
: Ensure you are using the latest version of the mtk-su binary. Older versions frequently fail on devices with slightly updated firmware.
| Device | Chipset | Result | | :--- | :--- | :--- | | LG K10 (2017) | MediaTek MT6750 | Success | | LG K8 | MediaTek MT6735 | Fail | | Motorola Moto E4 | MediaTek MT6737 | Success | | Alcatel 1 | MediaTek MT6739 | Success | | ZTE Blade A7 Prime | MediaTek MT6761 | Success | | LG K50 | MediaTek Helio P22 | Success | mtk-su failed critical init step 3
Newer chips (like those in the Fire HD 8 10th Gen or newer Oppo models) may use a kernel architecture that mtk-su does not support. Potential Fixes and Workarounds
Run the BROM bypass script on a computer running Linux or Windows (with modified LibUsb drivers installed). While mtk-su attempts to work around SELinux, you
Are you encountering the frustrating error message "mtk-su failed critical init step 3" while attempting to root or modify your Mediatek (MTK) based Android device? This issue has been a thorn in the side of many users and developers alike, causing unnecessary stress and confusion. In this exhaustive article, we will delve into the root causes of this error, explore the technical aspects of the MTK-SU tool, and provide step-by-step solutions to overcome the "mtk-su failed critical init step 3" hurdle.
On certain Amazon Fire devices, when mtk-su fails, there is sometimes a hardware-based unlock method involving shorting specific test points on the device’s motherboard. This is an advanced solution but may be the only option for some devices. One user reported: “I ended up doing the hardware setup instead… You need to ground that pin to the back board”. Older versions frequently fail on devices with slightly
If your device uses a MediaTek chipset that isn’t listed among the supported models, mtk-su may fail with this error. One user with a Koobee Y3 (Android 7.1, SDK 25) reported: “my phone is koobee y3 ,android 7.1 sdk25 cmd display ‘mtk-su failed critical init step 4’”——indicating the device simply wasn’t vulnerable to the exploit.
If it says armeabi-v7a , use the version. Using the wrong version frequently causes Init Step 3 failures. Method 2: Downgrade Your Firmware
./mtk-su -v