Well, I couldn't help myself. I really hate getting refurb devices when half of them have another issue entirely. I decided to open the phone up via the several videos online.. After which I found the vibrator motor, had X-acto Oil that I dripped via the needle it has on either end of the spindle between the offset weights. At first it didn't seem to help as it was hit or miss with vibrating. I put it back together and let it sit sideways charging hoping to let the oil soak through the motor - Well it did and that next morning, it was 100% consistent and is still going well!