Solved! LG Laptop won't boot

[Thaaanu]

I purchased new Toshiba 500GB HDD and installed it to my LG laptop. Then I was able to install Windows 8 successfully and worked about half an hour then shut it down. Later when I tried to stat the Laptop it didn't boot. Steps that I followed up to now
1.Hold the power button for one minute then tried to stat the laptop
2.Again install back the old HDD and tried to start the laptop

Please help me to get my laptop to working condition and the model number is LGS53.

 

[Deciplox]

have you made sure you reconnected everything correctly?

 

[Thaaanu]

Yes, later on we found a solution. We removed the CMOS battery for sometime and connected back. Now it's fine and thank you.

 

[Deciplox]

Yes, later on we found a solution. We removed the CMOS battery for sometime and connected back. Now it's fine and thank you.

thought it may be something internally. Your welcome