Hi, Bahadur,
Thank you for considering Sony Community!
We're sorry to hear this issue. Try to power cycle the computer by following the guidelines below:
- Hold the power button to turn off the unit.
- Once the computer is off, unplug the AC power adapter, other connected devices and remove the battery.
- Hold the power button again for 5 seconds to drain the electricity from the unit.
- If the battery is not removable, look for a battery off button (usually located on the bottom of the computer) and push that for 5 seconds.
If the issue is still unresolved, follow the link here for more troubleshooting steps: https://esupport.sony.com/US/p/support-info.pl?info_id=773.
For further assistance regarding your concern, please contact the Sony offices/Sony representative offices nearest to your place of residence in Asia Pacific region http://www.sony-asia.com/countryselector.html?hpid=countryselector:AsiaPacific. Due to proximity, they are in a better position to respond to your questions or concerns.
Best regards,
Vincent
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