The Blue Pill has a graphical LED Display. By default this is set to go into a sleep mode to prevent image burn-in. The unit is still operational during sleep mode, it is only the display that effected. Burn-In caused after disabling sleep mode is not covered by our standard warranty.
To wake the Blue Pill up from sleep mode, it should only be necessary to tap the unit. It is not necessary to shake it like a polaroid picture.