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Pete, Engineer
Category: Electronics
Satisfied Customers: 19723
Experience:  Over 16 years of experience in the Electronics and IT industries.
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mode keeps changing from HDM12 cable mode to ordinary (aerial

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mode keeps changing from HDM12 cable mode to ordinary (aerial mode)
Hi there,

If the mode keeps changing by itself, then there is likely a button stuck, either on the remote control or on the control panel.

Try leaving the remote controls outside of the room.
If the problem persists, then try pressing and releasing the input button on the control panel several times to help release it.

Pete and other Electronics Specialists are ready to help you