Originally Posted by venk
There is a new firmware available.
I have updated android firmware from 2.3.5 to 2.3.6 using "Kies" provided by samsung. And tested the mob it works, it is able to receive all incoming calls even when it is locked.
upgrading the firmware is d best soln. i bought d fne n 3rd of dec lst year nd i was having d same problm of incoming call. but last n8 i have updated my firmware nd everything is fine. just go to settings->about phone->check for update. almost 20 mb of data has to be downloaded in parts and ur fne is rebooted to install every update. gud luck evryone