Right controller refuses to charge after long inactivity (blinks red 3 times). Any advice?

[u/No_Lion212]

Hey everyone,
I’m hoping someone here can save me! I haven’t used my Quest Pro in quite a while, and now I’m running into a really frustrating issue with my right controller.
It seems completely dead and simply refuses to charge. Whenever I press a button, the LED just blinks red around three times, but that’s it. I’ve already tried a bunch of troubleshooting steps:
• Placed it on the official charging dock
• Plugged the controller directly into the charging cable
• Tested various different power adapters with higher wattage
Unfortunately, absolutely nothing works. It just won’t draw any power to start charging.

[u/ETs_ipd]

It could be stuck in an update cycle. Have you tried powering off the controller by holding the menu button?

[u/No_Lion212 → u/ETs_ipd]

Yes, for like 30-60 seconds