$100 at most places. Once an ipad is 10+ years it's time to replace. They will stop issuing updates for that model soon rendering it to the value of a very expensive brick.
The people here ("guides") generally don't work in the places. So best to call them directly.
This probably isn't the best place to get that question. You would be better off calling and talking to geek squad or looking into finding another Apple product repair store
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