For MTK devices, the timing of when you plug in the USB cable while holding volume buttons is critical.
Handshake errors often stem from "ghost" drivers or incompatible USB filters.
Your PC should briefly show "MTK USB Port" or "Preloader USB VCOM Port." If it disappears too quickly or shows an error, the bypass tool cannot catch the handshake window. 4. Update the Servicing Tool handshaking... error unexpected response 0x68
Open your Device Manager, remove existing MTK/Preloader drivers, and uninstall LibUSB-Win32 .
The device may be stuck in a pre-loader or BROM state that requires a physical reset to clear its internal buffer. For MTK devices, the timing of when you
Does this error occur specifically while you are trying to or while unbricking a device ? Solved: Hardware handshaking causing a serial comm issue?
Use a trusted tool like the MCT MTK Auth Bypass Tool to reinstall the specific USB filters required for your device model. Does this error occur specifically while you are
The "Handshaking... Error Unexpected Response 0x68" is a specific communication failure most commonly encountered when using , UnlockTools , or SP Flash Tool to service Android devices . This error indicates that while the computer "found" the device, the security handshake between the servicing software and the device's Boot ROM (BROM) failed because the device sent a response code the software did not expect. Common Causes of the 0x68 Error