Question lenovo miix 520 battery replacement problem

Feb 17, 2026
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I cannot power it on after almost closing the case, following battery replacement.

I watched 2 or 3 YouTube videos on how the replace the battery, so I opened the case starting from the long side which includes the keyboard connector. I then had difficulty opening the other long side andbroke off 2 very small plastic lips possibly intended to hold the case closed. After the replacement I refitted with tweezers the 2 cables linking the display to the main board with considerable difficulty, because the ribbon cables are short, limiting the space in which to work (I used two stacks of books the keep both tablet halves nearly vertical and close together).

Advice please!