If your Samsung TV says "mode not supported PS3, " it is possible that the TV has an HDMI problem. Fixing the HDMI cable connection error on a PS3: 1. With the HDMI cable, connect your PS3 to your TV. 2. Hold down the power button on your PS3 for five seconds when you turn it on. 3. HDMI will be recognized, and the video settings will be reset. 4. Next, it will try to find the right TV resolution. 5. Confirm by pressing X.