My cyber-shot dsc dos notturn on - Sony Cyber-Shot DSC-W220/B Digital Camera

I'm sorry to hear that the Camera is not turning ON. Please follow the troubleshooting steps and check the operation.
Please make sure that you're using fully charged battery
Remove the battery, press and hold the power button for 5 seconds and then reinsert the battery..
Try using a different battery to check whether the issue is with the battery..
You may also check the battery poles using a multimeter to confirm this if you do not have access to a different battery..
If the issue persists, service may be required.
Thanks for understanding.