Strange Noise Coming From Vivo Tab RT

[garak0410]

My mother-in-law and sister-in-law both purchased a Vivo Tab RT from their AT&T store within days of each other. Both have developed this random, buzzing sound coming from inside them. I did a quick search and didn't see any substantial articles on this. Has anyone else encountered this problem?

Thanks!
Brian

 

[asus_usa]

Is the buzzing noise constant or does it seem to pop up only once in a while? I would contact the AT&T store as the units might be defective. I am not sure what inside could cause a buzzing noise, unless it is the speaker.