I am Vinod. I will try my best to help you resolve this issue.
I am not sure how you tried the reset. So I would start with holding down the power button and the home button together until you see an apple logo.
If you still can't get the iphone to go to the home screen, I would then suggest a restore of the device.
Open itunes in the computer and connect the iphone to the computer. Now, on the iphone, press and hold the power button and the home button together until you see an apple logo. The very moment you see the apple, let go off the power button but keep on holding the home button for another 10-15 sec. Your computer should now give a message that it has detected an iphone in recovery mode and needs to be restored.
Restore the iphone now. After restoring, choose the latest backup. Let me know if you find any difficulty.