The Sony Xperia Z3 is an android smartphone released in 2014 known for it’s long battery life and durability.

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What is that on top of the heat sink?

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I have decided to replace my lcd screen with bezel. It seems harder than just replacing lcd screen. I managed to scatch the flex cable for motor, power etc with tweezers. So, I have ordered new flex cable aswell.

Back to the question, on top of the heatsink it looks like thermal paste. Should I just put thermal paste on my new bezel?? Or where can I get what's on there now.

Thank you

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If the new screen with frame does not come with that then you should transfer it carefully to the new frame to the same location.

That is basically a thermal pad that transfers heat from the logic board to the frame to dissipate it.

I'm assuming it sits under the CPU part of the board.

You wouldn't want a thermal throttling phone would you?

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I see..It does sit below the CPU part of the board.. I don't think I will be able to transfer it. I will need to buy new thermal pad. I'm guessing 0.5mm thickness thermal pad is the best.

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