The "Handshaking... [ERROR] UNEXPECTED RESPONSE: 0x68" message is a common, yet frustrating, roadblock for users attempting to flash, unlock, or repair Xiaomi, Redmi, and POCO devices, particularly those powered by MediaTek (MTK) chipsets.
If you are attempting to flash firmware, unlock a device, or communicate with a server and are met with the message, you are dealing with a communication breakdown. In the realm of computing and mobile flashing (such as using the UnlockTool), this specific hex code points to a critical failure during the initial authentication and synchronization phase.
If you are trying to flash a mobile phone and encounter this error, the phone might be in the wrong mode. Ensure the phone is completely powered off. handshaking... error unexpected response 0x68
: Since tools like Unlock Tool require an active server connection to validate the handshake, high latency can lead to a timeout that looks like a response error. Review for Developers/Users
: Ensure that all communication settings, such as baud rate, parity, and stop bits, are correctly configured on both devices. The "Handshaking
If your PC "sees" the device but doesn't understand its response, it’s likely a driver issue. Ensure you have the latest MTK/SPD drivers installed. Many users find success by using a "Filter" in LibUSB-win32
Modern USB 3.0/3.2 ports (blue or red ports) utilize power-saving protocols that regularly drop legacy BROM connections. Always prioritize a black USB 2.0 port. In the realm of computing and mobile flashing
You might encounter this in a debug console while trying to flash firmware to a microcontroller, in a PLC (Programmable Logic Controller) communication log, or within a custom script controlling a serial device like a barcode scanner, modem, or payment terminal.
Driver conflicts are the number one cause of handshaking errors. Disconnect your device. Open your on Windows.
In database administration, particularly when using Python ( pyodbc / SQLAlchemy ) or PHP ( pdo_sqlsrv ) to connect to Microsoft SQL Server or Azure Synapse, hexadecimal 0x68 translates to , which explicitly denotes a "Connection reset by peer" .