Apple users! ANYONE! HELP!!!!!?

So I have an old ipad mini 2, and i want to update it and my mom has an ipad mini 5, so last night when she was sleeping i teared off the back of the ipad mini 5 to take the A12 Bionic chip out and put it in my ipad mini 2 (or tried to) and it isnt working. can someone please help
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