Apoligies about this being my first post I am new here and got a servious problem.

My son is out of town for a few days and his Alienware Laptop BIOS failed. They says it is under the keyboard and needs a trained engineer to do this as it will cost at least 70 bucks plus shipping.
I thought I could help him and offered to do this before he returns. I have tried looking under the keyboard, please see attached picture but I cannot find where this is?
I assume I am looking for a round battery???
Also, the keys are not clicking straight back into place - is there a method I should use to do this?
I apprichate any help here as he's not excatly going to be very happy with me and I only have a couple of days to get this sorted.
Thank you.




























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