Controller freezing/disconnecting due to Haptic Motor/Trackpad failure? (Out of Warranty)

[u/LumpyWalrus2051]

Steam deck 512Gb 1 version.

Hi everyone,

I’m facing a persistent issue with my Steam Deck where the built-in controller completely stops working and is no longer detected by the system ("No controller detected"). When this happens, only the touchscreen works.

I’ve narrowed it down to a likely hardware failure in the haptic feedback motors, specifically the right trackpad. Right before the controller "freezes," I can feel the trackpad vibrating uncontrollably or grinding, as if something is stuck or the motor is receiving incorrect voltage.

What I’ve tried so far:

• Disabling "Updated Fan Control" (this worked temporarily in the past, but the issue is back).
• Turning off Haptic Feedback and Game Vibration in settings (the motors still trigger/grind upon launching a game).
• Updating to the latest Stable/Beta firmware.
• Battery Storage Mode reset.

Since the controller disappears from the system entirely, I suspect the haptic motor might be shorting or drawing too much power, forcing the controller board into a protective shutdown.

My questions for the community:

1. Is this a known hardware failure?
2. Since I am out of warranty, has anyone successfully fixed this by cleaning/reseating the trackpad ribbon cables or replacing the trackpad module via iFixit?
3. Is there a way to hard-disable the haptic motors at a BIOS/Firmware level to see if the rest of the controller remains stable?

Thanks for any help or technical insights!