In Samsung GT-S7562 Handsfree problem can occur because of the faulty Handsfree Connector or it’s bad connection to the Cell Phone’s Motherboard. So first of all you should clean Handsfree Connector Ways and Motherboard of the Mobile Phone. If that does not work then you can replace the Handsfree Connector.
Samsung GT-S7562 Handsfree Solution
Samsung S7562 Headset Not Working
Note: Every repairing solution posted here is tested by at least one member of our team. Use the information available here at Your Own Risk. We are not responsible if any harm comes to your device during the repairing process.