HT-G700 Firmware update problem

[dolpha]

Today i upgrade my Ht-G700 soundbar from v1.062 to v1.108.
this upgrade destroy my soundbar. i can't use HDMI in an out ports 
Any dolby audio codecs not working with my samsung q900A tv any more 
Pleas show me the way to turn back my old firmware
Please help

[Marino.Manolo]

Try to Reset the Soundbar...
[PDF]Startup Guide(1.15 MB), Pag. 45:
https://www.sony.com/electronics/support/res/manuals/5013/8cb7a58445df001c652d13a2b3bc8e80/50130561M...