What should I do if my VAIO computer does not turn on or the power button does not work (the power indicator light blinks fast)?

• A battery error may have occurred.
  Push and hold the battery off button on the bottom of your VAIO computer for about three seconds with a thin, straight object (such as a paper clip). [Details]

• The battery pack may not be installed properly.
  Remove the battery pack and reinstall it properly. [Details]

• If the problem persists, it means the installed battery is not compatible with your VAIO computer.
  Remove the battery pack.