Laptop doesn't power on
Ok, I have a Sony Vaio VGN-NR21Z. Only 18 months old (so out of warranty). This is what has happened:
In the past, my laptop had 'periods' of time, 2-3 days, where it would turn off suddenly if i moved it/the screen. It would then be fine for a while, even a few months, then it would do it again. It only done it for a few days at a time, but as I said, it would be fine for another few months until it done it again. This has gone on for about a year.
However, last week it turned off - during one of the 'periods' (it was doing it frequently that day day and the day before too when moved). Unfortunately, I couldn't get it to turn back on. Now, every time to get it powering back on, I would have to remove the AC, remove the battery, put back in the battery, put back in the AC then press the turn on button. I'm not sure if this has anything to do with it, and it might not. Sometimes it got very repetative, and I would have to do this a few times before I got it back on again, but most times it only needed to be done once.
I took it in the Sony centre and, long story short, they messed me about completely, wasted my time and gave me back my laptop today without it even being looked at.
So that's why I came on here to see if anyone has any ideas? I'm guessing motherboard or a loose connection somewhere. Also, if anyone could give me any ideas where to look or what to do inside the laptop that would be very helpful. I'm planning to take it into a shop on Monday but wanted to get ideas on here first.
Appreciate any help
edit: tried with another AC and it didn't work. Also tried with battery out and said AC in and it still didn't work