Below are the step-by-step instructions on how to manually setup WiFi on the TCL Alto 9+ Sound Bar.
Note: If the LED is a solid light, powercycle the TCL Alto 9+. Press the power button on the sound bar remote control to wake-up the unit. Then press the power button on the sound bar remote to place the unit to SLEEP/Stand-by mode.
There are two more things we need to do to get your sound bar ready for Wi-Fi streaming:
Once reset is complete the sound bar will restart. From here you can start setting up your sound for Wi-Fi streaming through Chromecast or Airplay.