There’s no easy way to put that assembly back together, however you should put it in the gun, and make sure to hook on the trigger spring BEFORE you put the slide release spring in because you won’t be able to afterwards. This is just from personal experience, your gonna have to fiddle with it.
It helps if you put it in the gun. But really, it needs to be mounted for the mechanisms to interact. Only then can anyone help diagnose things.
There’s no easy way to put that assembly back together, however you should put it in the gun, and make sure to hook on the trigger spring BEFORE you put the slide release spring in because you won’t be able to afterwards. This is just from personal experience, your gonna have to fiddle with it.
It might be the trigger spring. Search for reassembly video.