My laptop is Dell inspiron 15,3000 series(core i5).When i open the laptop it automatically turned on without switching on,but screen was black.Only cursor was shown.power button was on.fan & drives were working.I tried closing & openning(not turning on/off) again and again.but result was same.After closing, power off automatically .Last time i shut down it properly too.now it has shown this problem 4times.At first and second times screen was on after one day without any effort.but third time it wasn't.So I tried keeping finger on switch on button few seconds and it worked.Lap was completely turned off and i could switch on properly again.Now again problem was happened,followed same.But i'm afraid that it will make a huge problam in near future.now it has gone 1 year after buying this.I haven't done any unsuitable thing with this.please help me!plz!!
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