Is my keyboard connector broken? Part 518S0752

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MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）

2015年3月更新的 13 英寸 MacBook Pro 配备 Retina 显示屏，型号为A1502，采用第五代英特尔酷睿 i5 和 i7 处理器，并配备 Force Touch触控板。

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h7nry @h7nry

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发帖于: 2023年9月24日

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Is my keyboard connector broken? Part 518S0752

I've replaced the keyboard on this but rows of keys would stop working but then would work again. The problem is slowly getting worse. I've tried replacing the keyboard yet again and the same issue is showing up.

I suspect it's the keyboard connector, part # 518S0752. https://www.injuredgadgets.com/5-pack-ke...

The plastic lock tab on it is broken. I assumed it was just for holding the ribbon cable in place, or does it actually put pressure on the ribbon to make contact with the pins on the keyboard connector?

The latter is what I'm guessing happens and why my keyboard still won't work properly despite two replacement keyboards...

The only other thing I can think of is maybe the ribbon cable is breaking from the bend pressure from the touchpad since it needs to fold a bit for the touchpad to go back on. Is there a way to use a multimeter to rule out the keyboard connector or anything?

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Alisha C @flannelist

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发帖于: 2023年9月24日

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If you don't have the locking flap on the connector, that would be my guess. I find that things tend to work inconsistently in that state because the cable can move around more inside the connector without the locking flap. And yes, the flap does put pressure on the pins. Which is why you can't remove it when the flap is down. That also enforces proper contact with the pins.

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Thanks. I guess I'll give it a shot. Hopefully I can just transplant the locking flap from new -> old without any soldering.

My old flap fell out and I tried putting it back in but it snapped in half from the plastic going brittle with age.

由 h7nry 完成的 2023年9月24日

Update for people in the future... Replacing the plastic flap works. So if you're sure everything works keyboard (and its ribbon cable) and the connector, but you're missing or have broken plastic flap, then you can just replace that part. The link I posted should help you buy it or search with the part #.

The part I got off the link isn't the same size as the original. But you can still transplant the flap from the new to the original. The original is wider by 2 pins. It won't fit despite it being less wide because the flap's sides have little plastic nubs for a hinge that'll get blocked by the connector's left and right most pins. You don't need the hinges and can clip them slightly enough for it to not be blocked by the left and right outer most pins on the connector.

Once you do that, it'll still lock and flip up/down. And solved my keyboard keys cutting in and out issue.

由 h7nry 完成的 2023年10月5日

@h7nry Brilliant! Thanks for the update and glad you got it fixed!

由 Alisha C 完成的 2023年10月7日

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Thanks. I guess I'll give it a shot. Hopefully I can just transplant the locking flap from new -> old without any soldering.

My old flap fell out and I tried putting it back in but it snapped in half from the plastic going brittle with age. — h7nry
Update for people in the future... Replacing the plastic flap works. So if you're sure everything works keyboard (and its ribbon cable) and the connector, but you're missing or have broken plastic flap, then you can just replace that part. The link I posted should help you buy it or search with the part #.

The part I got off the link isn't the same size as the original. But you can still transplant the flap from the new to the original. The original is wider by 2 pins. It won't fit despite it being less wide because the flap's sides have little plastic nubs for a hinge that'll get blocked by the connector's left and right most pins. You don't need the hinges and can clip them slightly enough for it to not be blocked by the left and right outer most pins on the connector.

Once you do that, it'll still lock and flip up/down. And solved my keyboard keys cutting in and out issue. — h7nry
@h7nry Brilliant! Thanks for the update and glad you got it fixed! — Alisha C

MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）

Is my keyboard connector broken? Part 518S0752

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