Repairing the back panel of a HP-15c

[rprosperi]

Thanks for posting the resulting recipe, this will help future readers a lot.

Often, folks come here looking for advice and after collecting ideas, go off to make the repair and once done, move on and never bother to comment or document on what worked and how to do it. Yours is a great example of giving back to the community to help the next guy, so as I said: Thanks!