Aporte original por: Tom Chai ,
Burn-in can be temporary such as suddenly displaying static bright stuff for a while when the display is cold. [br] Or they can be permanent due to uneven wear.[br] [br] Once permanent burn-in sets in, there is no way a user can undo it unless you replace the display. [br] There are factory tools that cancels out the burn-in by recalibrating each pixel, but I doubt anyone does it on an old phone since it is not worth the effort.