I found the problem that, in the first, second and third time, I go to sleep mode by click windows button->Sleep, then flash, so no change SLIC In the forth time, I go to sleep mode by close the lid then flash, successful So now I know how to flash successful , but don't know what is difference between 2 way to go to sleep mode
@gomfedj I have some thoughts. If you are not frightened by the prospect of bricks, I'm willing to try