Help Blue led won't turn off, didn't know it even had blue

[Cell832]

Mytouch 4G slide, the led is blue and won't turn off doesn't blink or flash just solid blue. I noticed it in the middle of the night while the phone was charging, it stays on even when the phone is powered down, I can only get it off for the few seconds while resetting or when I pull the battery but it is the first thing on when I Hit the power button. doesnt change for notifications or while charging . I called tmobile and they ran me through the usual steps and ending it " sorry warranties out " only thing I haven't done is a master reset because iv seen one other post online that said the master reset didn't help. And tried to post a picture but got "As a new user you cannot yet post links or images" But any ideas guys? This is going to get annoying pretty quick