A "No Command" prompt usually means that the system cannot find the correct command to perform your operation. This situation may have the following reasons and solutions:
1. Operation error: Some devices may enter recovery mode in different ways. Please make sure to press the correct key combination to enter recovery mode. Usually, you can hold down the volume and power buttons until the device vibrates or some kind of prompt appears.
2. Wrong file brush: If you try to brush the machine, you may brush the machine package or the file is wrong. Please make sure to use the correct brush package for your specific equipment model and version. Using the wrong brush package may lead to command failure or other problems.
3. Equipment problem: If the above methods can't solve the problem, it may be that the equipment itself has failed. This may require further professional maintenance or consultation.
Generally speaking, when you encounter the problem of "Mercedes-Benz Samsung flat-panel brush machine has no instruction", you can try to confirm whether your operation is correct and ensure that you use the correct brush file. If the problem still exists, it is recommended to consult professional maintenance personnel or relevant technical support departments, who can help you solve the problem further.