I just ran into the "S" key popping out issue. Unfortunately, I tried pushing it back in and broke one of the L-shaped hooks used to hold the key in place. I need to replace the keyboard now and have found some cheap ones on Aliexpress as tommy318 mentioned. The only issue is that I cannot find a youtube video or any instructions on how to remove the existing keyboard in order to install the new one. Can anyone who has done this provide me with some instructions or post a youtube video perhaps. Thanks.