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The fourth-generation Surface Pro tablet, released October 26th, 2015.

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No power after removing heat sink.

I removed the heat sink, replaced thermo paste. Now it won't power on?

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@alejandroc74843 just to clarify, you replaced the heatsink once you applied the new thermal paste, correct? This could be anything from processor damage to missing a connection. You want to go triple check your work. check to ensure you have everything reconnected. Check the board for any damage around the processor. of course make sure that you have a good working battery and charger as well. Let us know what you find out.

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a heat sink is VITAL for a device, it will not boot if the heatsink is, faulty, damaged, or misplaced, it MUST be in the device for boot to keep the device cool.

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Screen turns on actually...seems like when the screen goes black for hibernation it stays off. Sometimes it turns out, but seems to glitch.

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