Ouch! Unfortunately this sounds like a story we heard before about the app & firmware updates... iOS or Android phone?It was working before. I rode it around the block.. Switching modes was working.. Right now, if I switch it on both led lines are lighting up in white and staying like that... If you press the on button a little longer, right line lights up white and the middle led on the left in blue.. Still cannot switch modes.. Guess I played myself. As a system admin in IT I should have kept it with "never change a running system".