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My lenovo tab e8 has a bad power button and volume button so how do i turn on my tablet?

Hi, The answer would be to replace the power key and the volume key and check if this resolves the problem. Here’s the hardware maintenance manual for the tablet, taken from this support webpage. Go to p.29 to view the necessary pre-requisite steps and then the procedure to remove the keys. On p.31 you will find the parts list FRU numbers for the parts. Search online using the FRU number only to get results for suppliers of the parts.