If the handshake fails due to authentication (error: SLA/DAA handshake failed), you need a different approach.
The MTK Bypass Tool handshaking error is usually not a bug but a setup or timing issue.
Quick recommendation:
→ Use mtkclient (free, Python-based) instead of the old MTK Bypass Tool. It handles handshake more reliably.
The "handshaking error" in the MTK (MediaTek) Bypass Tool typically occurs when the tool cannot establish a stable communication link with the device's BootROM (BROM)
. This failure prevents the exploit from disabling the device's secure boot protection. Common Causes Driver Conflicts
: The most frequent cause is incorrect or missing drivers. Windows often fails to correctly identify the device in BROM mode without a libusb-based filter driver Incorrect Boot Mode
: The device may be booting into "Preloader" mode instead of the required "BROM" mode. BROM mode is necessary for the bypass to function. Locked Hardware mtk bypass tool handshaking error
: Some manufacturers (e.g., Lenovo) have disabled BootROM access on certain devices, making a handshake physically impossible without hardware modifications like "crashing" the preloader. Cable or Port Issues
: Using a low-quality USB cable or a USB 3.0/3.1 port can sometimes cause timing issues during the high-speed handshake process. Troubleshooting & Solutions Update Drivers to install the libusb-win32 driver for the "MediaTek USB Port". Check Key Combo To force BROM mode, hold Volume Up + Volume Down
(or just one, depending on the model) while plugging in the USB cable. Reset the Device If the tool is stuck, hold the Power button for 10–15 seconds to force a hard reset before trying again. Bypass Antivirus Ensure your antivirus hasn't quarantined the tool's
or Python scripts, as they are often flagged as "false positives". Verify Python Setup
Ensure you have installed required dependencies via terminal: pip install pyusb pyserial json5 Advanced Indicators Echo Mismatch
: If you see "Echo mismatch: expected 5f, got a0," it usually means the tool is talking to the instead of the If the handshake fails due to authentication (error:
. You may need to use a "crash" utility to force the device into the correct mode. Phantom Output
: A single "Handshake failed" message that doesn't repeat may simply be the tool scanning for devices that aren't there. for Windows or a list of supported MediaTek chipsets for this tool? Handshake failed on lenovo x306x (Mediatek Helio P22T) #58
| Chipset | Recommended Tool | |---------|------------------| | MT65xx – MT67xx | MTK Bypass v1.0 – v1.2 | | MT6761, MT6762, MT6765 | v1.4+ | | MT6785, MT6833, MT6853 | v2.0+ or UnlockTool |
If you are deep into the world of Android firmware flashing, repairing IMEI, removing FRP (Factory Reset Protection), or unlocking bootloaders on MediaTek (MTK) devices, you have likely encountered a specific, maddening roadblock: The Handshaking Error.
You’ve downloaded the latest version of MTK Bypass Tool. You’ve installed the drivers. You’ve turned off your phone. You hold down the volume button and connect the USB cable... but instead of seeing a glorious "BROM Mode" success message, the tool spits out:
"ERROR: Handshaking failed. Please check connection." The "handshaking error" in the MTK (MediaTek) Bypass
You are not alone. This error is the single most common issue faced by technicians and enthusiasts using the MTK Bypass Tool (usually the utility developed by unlocktool or similar open-source developers).
In this guide, we will dissect exactly what the handshaking error is, why it happens on your specific Mediatek device, and most importantly, how to fix it permanently.
For most MTK devices:
Alternative: Short KCOL0 to KROW0 (test point) for forced BROM.
The causes for this error range from the mundane to the highly technical.