I hope you can help me with my Vaio VPCY15AB laptop problem. I made a lot of research on the internet but I wasn't able to identify the source of the problem.
A few weeks ago, my laptop started to freeze or shutting down while I was watching videos. Then, I was able to start it again imediattely.
Last week I was watching an training video when it froze. After that, I had to turn it off with the power button and it didn't turn on again.
There's about an year now that the battery doesn't work so I have to use it always plugged. Eventhough the battery doesn't work anymore, the laptop doesn't start without it being in place.
After researching at youtube, I was able to open the laptop and clean the cooler exits (they were quite obstructed with dust). I also changed the RAM to another free slot.
After cleaning, the laptop still presented issues on start up so I tryied to perform a recovery to the factory configuration using the Assist key.
During the recovery procedure, the laptop needs to restart a few times. The problem is the laptop wasn't able to restart after the first recovery step.
After lots of attempts I finally got the recovery to reach its end. The computer seemed to be starting again but the wireless adapter stopped working (even with the switch turned on). I was using an old usb wireless adapter to connect to internet, but connection was very bad. I managed to update the computer Bios and the laptop drivers but I couldn't solve the wireless problem (I guess maybe the switch is broken).
I should have stopped there, but I wanted to know if the wireless problem could be solved booting with a portable Linux version (slax). So I started the laptop with the USB media and it started fine, except for the wireless network. Then, I shutdown the laptop to return to Windows 7, but it didn't start. The power light kept on but I got a black screen. I then turn it off with the power button.
At the first attempt to turn it on again, the laptop started up but it froze at the windows logo. I tried then to recover to the factory configuration again with no success. The laptop can't restart after the first recovery step. I also tryied to start it up with the recovery boot disk and with the USB Linux midia and they didn't work.
Thats the situation now:
When I leave the laptop off and turn it on I get video and the coolers make noise. The HD light turns on for a few seconds and the laptop shows the Vaio logo and tries to start windows, eventhough it freezes after that.
But if I try to start the laptop right after shutdown, the coolers make noise but the HD light doesn't turn on. The keyboard lights don't turn on also.
What I find strange is that I get video if the laptop stays off for sometime. But it shows a black screen otherwise. That's different behavior is what is getting me intrigued.
Sorry for the long report.
I would appreciate any help.