You typically see this text in the top-right corner of your television screen when an external media player is connected via HDMI. This happens for a few reasons:
For most users, this label is harmless and does not indicate a technical failure. However, if the notification is intrusive, you can try the following: mbox meson ref
In some cases, poor-quality HDMI cables can cause the TV to "lose" and "refind" the box repeatedly, causing the label to pop up constantly. Replacing the cable can stabilize the connection. Summary Table Mbox Generic term for a digital media/streaming box. Meson The processor architecture family from Amlogic. Ref Default hardware reference used in the device firmware. Change the HDMI "label" - CoreELEC Forums You typically see this text in the top-right
Manufacturers sometimes release updates that change this generic label to the actual brand name of the device. Replacing the cable can stabilize the connection