My phone accidentally fell from a low height (not very high), and I wasn't using a case at the time. After picking it up from the ground, I noticed a sound inside the phone, like something small is moving when I tilt it up and down (but not side to side). It feels as if a tiny part is loose and shifting.
Could you please let me know if this is a serious issue, and whether it might affect my phone's performance? Po you have any idea what this could be?