Symptoms
- Volume buttons control the TV instead of the soundbar or vice versa
- Pressing home takes you to the wrong app or input
- Remote sometimes controls two devices unpredictably
- Started after connecting a new device via HDMI
Likely causes
- CommonHDMI-CEC cross-control between devicesCEC lets one remote control multiple HDMI devices, which can misfire between brands.
- CommonUniversal remote programmed to the wrong device codeA slight setup error assigns buttons to the wrong device.
- PossibleMultiple IR-based remotes with overlapping codesTwo devices from the same brand can share similar infrared codes.
- Less commonStreaming device remote using Bluetooth pairing conflictA Bluetooth remote can occasionally pair with the wrong nearby device.
What to do
- Go into each device's settings and look for an HDMI-CEC option (often called Anynet+, SimpLink, Bravia Sync, or similar) and turn it off on all but one device.
- If using a universal remote, redo the setup process and confirm you selected the exact brand and model.
- Point the remote directly at the intended device and stand closer to reduce IR crosstalk with the other device.
- Separate devices physically if they're stacked close together with visible IR sensors.
- Update the streaming device's remote software through its settings menu.
- Re-pair a Bluetooth remote by unplugging the device and following the pairing steps again.
- If the issue is specifically CEC-related, control each device with its own remote as a workaround.
When to call a pro
No professional needed; this is a settings conflict rather than a hardware failure.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.