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The trademark keeps flashing after the apple screen is black.
This is not poisonous. Just because the system file is corrupted. You can try pressing F8 in the startup logo interface to enter the safe mode. In safe mode, download the Rubik's Cube Optimizer and repair it with one click.

360 or something is not recommended.

Try again when it's fixed. If not, install the system in Chongqing. It doesn't matter if it's not a hardware problem.