Music as C1 short-circuit to save brick tutorial [lean and effective]

Many friends have heard about the method of short-circuiting and saving bricks, but they have been afraid to try. They fear that because of a short circuit burning the box, the landlord will now teach you how to use the short-circuit method to save the bricks.

Tip: short circuit with the metal object as shown in the FLASH 5,6 pin, and then power on the box 3-5 seconds, in the short-circuited metal objects away, when the robot appears to enter the save brick mode.

2. The system automatically reads and enters the SD card for recovery mode. See the figure below and restart the brushing machine.

After successfully saving the brick, you can continue to brush any firmware above UI2.3 and upgrade it offline.

Tips: If you see the (small green man) fall down to read the card content failed (look at the metal part of the SD card will not contact badly), or re-produce the startup card (remember to put three files in), check Whether the SD is inserted into the position, etc. (If necessary, insert it tightly and pull it gently outwards).

Special Note: Must be optimistic about which of the two short pins, the picture has been marked, do not short the error! Otherwise, only the factory is returned! ! !

Brush address: http://bbs.shafa.com/thread-1293484-1-1.html

Pressure Beams and circular plates on elastic foundations are considered. In some cases, additional elastic supports are present. The stiffness distribution of the foundation is designed so that the pressure on the foundation is uniform. Sometimes the depth of the beam or plate is also varied, with either a piecewise-constant sandwich or solid cross-section, and a global measure of the deflection is minimized. The total stiffness of the foundation and supports is specified, as well as the volume of the structure. In one type of problem, the edges of the structure are displaced downwards; in the other examples, a downward load is applied. Types of loads include a concentrated central load, a uniform load and a parabolic load. The uniform foundation pressure for the resulting design is often substantially lower than the maximum pressure for a corresponding uniform beam or plate on an elastic foundation with uniform stiffness.

Pressure Beams

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