Here is a structured approach:
Locate your device in the listed menu—it usually displays as MediaTek USB Port or USB Serial Device . Click and reboot your PC to apply the changes. 2. Execute a Total USB Interface Reset
Replace your cable with an . Many third-party cables only support charging and lack the data shielding required for handshaking. Software Interference
Double-check your connection strings. Ensure you did not accidentally prepend http:// to a host variable meant for a raw TCP or gRPC connection. handshaking... error unexpected response 0x68
: Where does the error occur? Gather error logs and timestamps. Look for stack traces pointing to a specific driver, library, or function.
Manually select an alternate, matching device model profile from the program's dropdown menu to load a compatible DA file.
Corporate firewalls, reverse proxies (like Nginx or HAProxy), or security software can intercept custom protocol traffic and return an HTTP "403 Forbidden" or "404 Not Found" webpage. Here is a structured approach: Locate your device
If the chip is locked in an infinite bootloop or trapped in a restricted security state, it will continually throw unexpected responses. Unplug the device from your PC.
After digging into various sources and forums, we've identified some possible causes of the "Handshaking... Error Unexpected Response 0x68" error:
High-speed cryptographic handshakes are highly sensitive to physical packet drops. Execute a Total USB Interface Reset Replace your
Are you seeing this error while setting up a or while flashing a device via a serial port?
The error is a specific technical failure often seen when using the Unlock Tool or similar mobile service software to communicate with Android devices (typically those with MediaTek/MTK or Spreadtrum/SPD chipsets) in BROM or Preloader mode . Technical Breakdown
"Please. Don't call me that. That was the name for the thing I was pretending to be."
Switch from a USB 3.0 (blue) port to a USB 2.0 port , as many flashing tools struggle with the high-speed protocols of 3.0 ports. 3. Verify Connection Timing