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Third generation Surface Pro tablet, released June 20, 2014.

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Unresponsive after screen replacment

I recently performed a screen replacement on a Surface Pro 3. The old screen came out with a bit of elbow grease, but nothing surprising. No tool slips, no caught cables, etc. Everything seemed to be going great. Cleaned off the old adhesive to replace with fresh, plugged the new screen in to test before completing, and I get nothing. The light on the charger comes on fine, but the tablet remains unresponsive. I did unplug the battery during the repair, so I didn't have to worry about shorting out anything or the screen trying to come on while installing. Plugged everything back in, and I get nothing. Tried all the button-press combinations I could find, to no avail. Anyone have a similar situation? This is for a customer, and I'm kinda stumped. I've already checked the small spring connectors that go between the cable and board for both the LCD and the battery, and both appear to be fine.

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NM. Figured it out. One of the SMD components next to the power switch had a bad solder joint. Reflowed the joint, started working great.

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how did you like the ball-less BGA on the power port?

I use a Surface Pro, we have many in circulation here. I just can't believe how poorly they are made. The glass on the SP3 is the most brittle glass I have ever dealt with.

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You wouldn't by chance remember which SMD you had to re-solder? I'm getting ready to take my SP3 apart because the screen won't stay on unless I bend the case slightly and it appears to be right at the top so I'm hoping it's something I can find to re-solder.

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I have seen this before when Replacing screens on other notebooks and there have been a couple reasons one of the big ones is when the plug for the screen is reinserted if you are not using anti-static band it will short out something on the motherboard. I replaced a screen for a student on a Chromebook and was not using my anti-static band . I did however have the battery disconnected and it still happened. I sent it into dell for warranty work and that was what they said caused it to fail Luckily we do enough business with them they fixed it anyway. Other things I have seen is the cable being crimped and causing the cable to fail. Hope this helps. Good luck

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