I've bought Sony Bravia KDL-48W605B few months ago.

From the very beginning there were an issue: TV did not respond to the remote control. But it was really rare, like one or two times per month. TV restarted itself and worked normally for a some time. 

But after the last firmware update (PKG2.303EUA) it just gone crazy: restarts itself over and over with few seconds interval.

I went through troubleshooting with guys from Sony Technical Support including power reset, factory reset , etc. Twice. it worked out for few days. And then I am getting same problem again.