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How to use a screwdriver

Method / step
Select the appropriate screwdriver according to the screw to be disassembled. Do not select the wrong screwdriver. If you want to use a screwdriver with a flat-blade screwdriver, you must select a Phillips screwdriver for the Phillips screwdriver. Also, choose a screwdriver of the appropriate size.
When disassembling the screws of the appliance, be sure to disconnect the power supply and do not operate the power.
When starting to disassemble, be sure to hold the screwdriver, then touch the screwdriver head with the screw. Apply even force. Do not screw the screw or flash it to yourself.
Be sure to pay attention to the first time, use even force