Hi, I bought 2 of the same TV's (32PFL3007H/12). One TV after a couple of months now is not responding to commands from the remote (the red light is blinking) or the back buttons. When the TV is turned on from the power cable its starts and is fully operational for 2-3 seconds, and after that just stops responding to the commands and has to be unpluged from the power source. I tried to upgrade the software via usb but the usb is not responding. The same happend to the second TV twice but after the power reset it was normal again and now i updated the software on the working TV. Is there a known factory error in this series of TV's and how can i fix the first TV? Thanks for your help