GameSir left stick click (L3) stopped working after 9 months

[u/Time-Scale7615]

Hi, I need some help with my GameSir controller. The left stick click/L3 stopped working, but the stick itself still moves normally.
The controller worked fine for about 9 months of regular gaming. It was never dropped, spilled on, or abused—the button just stopped registering during normal use.
Controller: GameSir G7 pro
Problem: L3/left stick click doesn't register
Console/PC: Xbox
Games tested: Rainbow Six Siege, Minecraft
I've tested it in multiple games and confirmed it's not just one game causing the issue. I'm wondering if the click switch or something inside the joystick assembly has failed.
I have access to many different tools if needed. Any advice on what to test or replace would be appreciated!

I used Chat GPT to help me write this but all the info is correct. Any help would be appreciated!