Try to press any button on your Astro remote.
INDICATOR: LED blinking 3 times / NO LED blink
SOLUTION: Replace new battery
Check if you can change channel using your Astro remote control.
You may walk-in to our nearest Customer Service Center for the replacement or purchase it directly from Astro Go Shop here.
If confirm no issue with remote control, please refer to Box hang at channel troubleshooting steps here.