I was confused by this answer. :thinking: And no, not because you misspelled it. :laughing:
I had mine apart again trying to figure how you did it. Pulled the battery and looked inside only to see access to the board blocked by the battery box. And it looks like the only way to get it from the inside would involve cutting out the battery box.
Then I looked closer at your pics and noticed that you peeled back your label to get to the board.
Doh,

that explains the superglue.
So the board screws to the plastic piece, which is superglued to the housing. Are there any components on the plastic piece that would remain if you were to remove the 4 screws that hold the board to it?