Re: Inspiron AIO 24-3455, flashes blue, green, red, white
That sounds like the LCD BIST (Built In Self Test) is turned on? Did you initiate the LCD BIST (press/hold volume up button, then press power button) ? How long have you been using this 2015 system prior to this issue? Are there any beep codes? What color is the power button? Is it flashing?