Thanks for early reply.
Yes I have had sound problem with android v4.2.2 2013-05-21 version and android v4.1.1 had resolved it.
Then on 6th Dec 2013 I have flashed with latest version:
and it works fine with full sound till 16-01-2014.
But TODAY when I flashed with atm7029_AINOL_SDK1119_NOVO101_2014-01-04
the sound disappear. Then I again flashed with previous version the sound again come back.
Thanks you again for remembering my problem
I don't know how to flash with recovery mode if u please let me know the procedure I would be very grateful to u.