ok guys..SONY finally replied my email with the following solution:
=====================================================
Thank you for contacting the Sony Xperia support centre.
We are sorry for late response.
With regards to your query,kindly be advised we have received the resolution of your device issue.However,we would like to advised to follow the step provided to resolve your device issue.We would like you to reboot your device to Safe mode then kindly perform clear cache and data to resolve your device issue once you done the troubleshoot kindly restart your device to check your issue have resolve.
To enable Safe mode
1. While the phone is on, press and hold down the power key.
2. In the pop up window, touch and hold Power off until the Reboot To safe mode message appears.
3. Tap OK to reboot in safe mode.
To Perform NFC issue:
With NFC off, clear all data from NFC Service and Google Play service via Settings>Apps>All.Under the running apps, select via the top right dots to view cached apps.Delete (Stop) them all. It can be tedious as some won't stop before others but persist and it can be done. Once you done the troubleshoot kindly restart phone once u done the step.
To exit Safe mode
• When in Safe mode, restart the phone.
=====================================================
However, I tried and it still doesnt work~! Can anyone verify???