Repairing the back panel of a HP-15c

[sunpazed]

Thanks for all your help. Here's how the repair turned out:

   
   

I followed these instructions:

1. Remove the rear cover, and carefully store the screws/springs somewhere.
2. Use a hot-bag to soften the rear glue.
3. Slowly peel off the metal with a plastic spudger. Don't damage either panel.
4. Repeat this a few times with the hot-bag.
5. Expect the rear panel to curl as you peel it off.
6. Once off, remove remaining glue with isopropyl alcohol, which makes a sticky mess.
7. Clean and dry the rear cover.
8. Clean the metal plate. I found that a pencil eraser helped to remove any final stubborn glue through friction.
9. Find a hard flat table with no grooves, and flatten the metal panel with a rolling-pin. This will take a fair bit of time. Using the hot-bag to heat up the metal makes it more malleable.
10. Once perfectly flat, use a good spray adhesive (I used 3M Super 77) to adhere the metal plate to the rear panel. Ensure all edges are covered. Wait for this to dry.
11. Assemble the case, and make sure you don't forget the all important springs.
    

Really happy that my HP-15c now feels normal in my hands without the sharp edges. Thanks again folks!