Good day everyone.
I have an old dell latitude 531 and as it was getting pretty hot I disasembled it, changed the thermal grease and cleanned the fan. Sadly after reassembly it won t boot, the power button does turn on and stays green but the display remains black. The only thing that happens is that the midle button of the three above the keyboard and to the left, the one with the picture of the letter A inside a locket keeps blinking. Can anyone help me, please?