DS4 got wet and will only work when connected with cable

Hey all, my 4 yrs old decided to “wash” a controller he got sticky. Didn’t get too much water in it. I took it apart immediately, unplugged the battery and tossed everything in a bag of rice for a few days. I cleaned everything before I put it together put a new battery in it. At first it worked for a day or 2 but now the only way it works is if it’s plugged in. No button or stick issues, when plugged in charging light works fine. It just won’t connect remotely.
It’s a second gen controller
Any help would be great.