Can't really tell anything at all from those pics.
One solder joint around the Left Stick looks iffy, and if either of them were replace then that's most likely why it's drifting.
No idea what the daughter board is. Top board is Button/Power board, bottom one is the MCU board. Any number of things on the Power board could keep it from working, cracked board, broken trace, missing component(s), fried components, bad components that look perfectly good, and on and on that can go and none of which can be found with dark grainy pics.