Ok 2 days ago my laptop shut down while oothers battery , it wasn't overheating and the fan wasn't blocked but the shut down was similar to one. It won't but into bios when you try to switch it on again though you can here the fan spinning and power light comes on. Tried removing the battery and charger and holding the power button for 20 sec still would boot up. Left it on the charger until battery light showed it was fully charged still nothing then I left it for 2 days and it turned on only to switch off again. Any help is much appreciated.