Philips India — philips in mms4200 2.1convertible soundbar-multimedia speaker system

Address:

600040

Sir,
I purchased one sound system through amazon during november 2016 and the same was received by me on 8th november, 2016.
Though the system functioned well so far with the philips lcd tv, i found of late, that the unit do not change to other modes function viz usb/sd mode. Assuming the problem to be in the remote unit, i tried to change the mode through the buttons on the main unit itself, even then the system do not change over to usb/sd modes. But the aux and fm radio modes are operating well.
Will kindly help me to get over the problem.
Thanks,
N. Balachandran,
F!-af55, 11th main road,
Annanagar west, chennai.600040.
Phone number [protected],
Mobile: [protected]