Just tried the fix myself. COMPLETELY SOLVED THE ISSUE.

I did 3 attempts. First I made the screws very loose, which just made the trackpad wobbly. Then i tried to make them a bit tighter, but that still gave me some high pitch rattling sounds and the trackpad got more sensitive, which where the problems to begin with. Then I did a third attempt, where i completely removed the trackpad and reinstalled it. This time I did NOT loosen the screws! I gently tightened the screws until they came to a natural stop. I did this for all 8 screws holding the trackpad in place (the 4 silver ones and the 4 black on the board above).

My take-aways:

• make sure you have the right equipment: T6 screwdrivers and preferably an opening pick (my nails was used and it hurt! Was the most difficult part of the hole thing) and a tweezer.
• you can access and detach the battery simply by unscrewing the two screws on the lit to the board, and then gently lifting it. No need to remove the glued on ribbon cable.
• you do have to remove the thumb stick as well to get access to the touch pad. But this is easy. Just 3 screws.
• i naturally tightened all the screws and that seemed to do the trick.
• you can test the track pad without reinstalling the backpanel, saving you some time
• I tested in desktop mode with both trackpad set as mouse and they are now completely the same feeling. Before the left was a machine gun rattly high picted, over sensitive pad, but no more :)

Thanks - this was jusr what I was looking for! :)

I have the same problem. Solution might be to loosen the screws that hold the touch pad in place:

https://www.reddit.com/r/SteamDeck/comments/184awko/fixed_my_steam_deck_oled_repair_guide_below/

I have the same issue. This might be a solution?

Anyone fixed the noisy / weird feeling haptics on trackpad issue? I’m contemplating trying myself, but can’t find any disassembly guides for the OLED model, and not sure if the screws needs to be tighter or looser.

Hi, I have same issue with track, and want to try fixing it tonight! Is there any differences from doing the fix for the lcd model? Cause I really want some video or picture guide so that I dont mess everything up! What tools are needed?

Here is the LCD guide for comparison:

https://www.ifixit.com/Guide/Steam+Deck+Left+Touchpad+Replacement/148939

I have the same issue.

In desktop mode the left trackpad feels CRAZY when used as a scroll wheel, compared to when the right track pad is used as a scroll wheel. The left trigger feels annoying to press because of the sound, but the right trigger (and trackpad) haptics feels just like my old steam deck. In the OLED issues post, it’s suggested that you can open the steamdeck and tighten the trackpad, but I have not found any guides to do this on the OLED model, which I believe has a different internal setup. Sounds like the only options is to live with it or RMA and cross your fingers :/