After the purchase, I went to the official JBL website (), from there I downloaded a new firmware and full instructions. The latest firmware was posted there in April 2022. I ated the software according to the instructions, everything works as it did, I did not notice the difference. I took this panel for a TV installed in a small hall in an apartment due to the indistinct sound from the TV. Now everything is OK, there was a feeling of surround sound.
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