I had this camera for some years, and i haven't chnaged the battery, only charging it. As i wanted to change the battery i noticed no metter if i get the pin that was supose to make it fall from the slot, it wouldn't come off, i shaked thinking i could get it out but it didn't work. As i was inspecting the outer of the camera i noticed the left-down part from the front of the camera was weirdly stick upwards from the camera, so after some unscrewed i realized the problem was that the batery somehow got filled with air. Can anyone help me pls?