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![HD] Reinstalling the Keyboard/2nd RAM Slot on a Lenovo Thinkpad T420 T410 T400 X220 X200 Edge W - YouTube](https://i.ytimg.com/vi/YEFAZ0Sdztw/sddefault.jpg "HD] Reinstalling the Keyboard/2nd RAM Slot on a Lenovo Thinkpad T420 T410 T400 X220 X200 Edge W - YouTube")
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