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The slimmer version of the bulkier ThinkPad T420. The T420s is notable for its lower battery life and noisier fan compared to the original T420 laptop.

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instructions for input repair

ok i am trying to follow how to do a power adapter input got all the way to the end then i see this person is pulling out a board instead of a plug in type input that is seen when i do search for replacement,am i missing something or are all the inputs boards?

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I'm sorry for not posting results before but after following this post TO THE Letter i did complete the repair, thanks for the support!

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what is the model of your lenovo. some lenovos power buttons are built into the system board. if this is the case then you will need to replace the whole board.

try to find used boards on ebay to save money, but make sure they accept returns.

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Chip Amaker 将永远感激不已
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