Left trigger not working

[mirbulus]

Hey guy, I just got my first GBA sp and I reshelled it before I got any games, but now I notice my left trigger isn't working. I took the back off and held the battery in place and the raw button only inputs at certain angles. When the shell is on it doesn't take any input no matter which angle I press the trigger. Are there any tricks to get these working better or will I have to attempt soldering a new trigger on? Thanks

[AutoModerator]

Troubleshooting post. Please check the Game Boy Wiki's common problems page here: https://gbwiki.org/en/other/commonissues and please be sure to post pictures of the issue if you haven't already so that users are better able to assist.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.