Hi. When i put the phone to go charge at night I noticed a red light next to my top speaker. Confused at what this was I stared and stared until i tried to reset it. Then i looked at it again and still didnt understand why it was there. Upon researching I found out that it is probably the proximity sensor and that it was an IR sensor. Is there a reason why I see this? Is it normal? I may have gotten some sand in my phone on a vacation about a week ago but Im not sure if that matters? Finally, is the light dangerous? I stared into it for a good 5 minutes while examining so Im not sure?