I can type again!

我的问题

Oatmeal with maple syrup and keyboards don't mix.

我的修理方法

The degree of difficulty here is the sheer number of steps involved. None of them by themselves are difficult. And paying extra for the whole upper case rather than replacing just the keyboard was key (heh heh) for me.

我的建议

Patience. The magnetic pad for holding parts is crucial for me. And a towel. I put a terry cloth towel on the table. It keeps any dropped tiny screws from bouncing off into the ether.