The specific method is as follows: find the corresponding model, carefully disassemble the machine, find the corresponding two points, hold them down with tweezers, short them, then plug in the cable to connect the computer, and then loosen the tweezers to check whether the driver is installed. If not, disconnect the battery, unplug the battery cable, reinstall it carefully and repeat the operation.
Disconnect the battery as much as possible before short circuit. Generally, it is best for a mobile phone to bring its own original data cable. If there is no other cable with better quality, it is also possible. After the short circuit, connect the mobile phone to the computer and open the computer device manager to see if there is a 9008 port. If so, start brushing the machine. If not, please do it again until the 9008 port appears. The data cable is not connected to the computer, fasten the battery cable, open the computer equipment manager, right-click My Computer Management-Equipment Management, and find two short-circuit test points on the motherboard. There is no need to remove the motherboard, just find the short-circuit contact.
The tweezers are short-circuited to two points, which are connected together and are in a short-circuit state. It is recommended to connect the data cable of the mobile phone first, so it is more convenient to plug in the computer. When the computer has port 9008, loosen the short-circuited tweezers and take them away, so that you can directly find the short-circuited point and then connect with 9008.