Sorry to hear about this and hope this isn’t your main computer.
Firstly may I ask you attempt to boot off of that previous MX300 that you mentioned (If it still has MacOS)
Then, maybe try something like TGpro and see if it you can crank the fans.
Final hope for this is to put everything back to stock and try again.
What version of macos is the computer running.
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I do have a lenovo 13”10th gen i7 that gets rly hot and shuts down like yours however its somehow related to the battery (I question how that works lol)
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I do have a lenovo 13”10th gen i7 that gets rly hot and shuts down like yours however its somehow related to the battery (I question how that works lol
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***++UPDATE 31/3/22:++***
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My friends’ macbook air 2019 has gone into a thermal runaway and has been sent away for a full logic board replacement. Maybe a fuse or something blew and that caused ur thermals to completely spike. It could also be a hard drive sensor if it originally came with a hard drive (But i doubt that).
Hey buddy,
Sorry to hear about this and hope this isn’t your main computer.
Firstly may I ask you attempt to boot off of that previous MX300 that you mentioned (If it still has MacOS)
Then, maybe try something like TGpro and see if it you can crank the fans.
Final hope for this is to put everything back to stock and try again.
What version of macos is the computer running.
I do have a lenovo 13”10th gen i7 that gets rly hot and shuts down like yours however its somehow related to the battery (I question how that works lol)