Keyboard & trackpad issues and fan running hard

Hi All,

I have replace a new battery in my macbook pro 2015 A1502. But my trackpad and keyboard are not working now, I have tried a new trackpad cable but it also don’t work.

The cpu of my laptop is overload with the new/old trackpad cable, the ventilator is continue active. The trackpad and keyboard gives no reaction, no light.

Have someone any idea to solve this? Thanks a lot

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How about running the onboard diagnostics to see if any errors pop. Restart your system and Press the D key

Reference: Mac startup key combinations

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