Lenovo Y550 has been sitting without being used for many months. I tried to power up today with the AC adapter plugged in. It tries to start, the disk drive symbol flashes on for a second of two, and then everything stops. It was working fine the last time it was used. I've tried removing the battery, etc. with no success. Any ideas?

SOURCE: Lenovo 3000 N200 battery wont charge

no it might not be a battorey problem it could be a software problem,

SOURCE: ethernet controller for lenovo 3000 n200

please try this link and advise if it works.

http://www.driversdown.com/ViewDownloadUrl.asp?ID=106387&brNum=3&show=0

SOURCE: Lenovo 3000 N200

sounds like the mother board maybe on its way out - is it under warranty?

SOURCE: My ibm lenovo laptop is plugged in into the AC

Had a gateway laptop that had similar issues. 1. Has the unit ever overheated ? . if so you may have to open the case down to the battery, hopefully the unit has a plug in style battery, when you unplug it and wait 30seconds, then plug it back in you will reset the bios on the unit. I was about to junk my 6 month old computer until i tried this step. put it back together... every thing resumed as normal didnt lose or change a thing. hope this helps

SOURCE: Lenovo T60 power port not working

If the docking station charging doesn't work either and your battery is ok you have lost voltage regulator (it prevents overcharging of battery) Take the battery to a battery plus store and they can check it..