4 cpu's in idle, and why is my phone rebooting when locked?

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New member
Mar 31, 2023
My phone started doing something very strange. As long as I am using it and the screen is on, it works fine, but a bit slower than I'm used to. But as soon as the screen goes off (sleep) or I press the power button to lock/sleep the phone, it crashes and then needs to restart to start working again. I later noticed using some apps that 4 of the cpus are always on idle. But on my other mate 20 pro (own 2) all 8 are working. I have attached images of the faulty, and working mate 20 pro I have.


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