Lenovo ThinkPad Ultra Dock broken lock replacement

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Remove all marked screws and keep them save

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Remove also those screws

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lift the cover carefully till the clips snap out

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next lose this screw as well

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You can use a plektrum to open up your device. You might will have to repeat the step multiple times. Make sure that you take care of every slit

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I suggest you to glue the spring on the second picture on the bottom. It will be easier for to reassemble the device later

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Remove all the marked screws in order to remove the lock mecanism

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Pull out the placeholder

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Remove also this screw and the plastic part which is held by it

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remove the lock

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This spring snaps out very easy so pay attention that it is still inplace before you assemble every thing again