Chosen Solution
So I was reviewing over the Electronics Water Damage guide on the site. When it comes to cleaning the logic board (cleaning circuit boards section) it says to submerge them in isopropyl alcohol. For how long? Also is it neccessary to submerge them or is it just as effective to “blot and dab” the alcohol with a Q-tip? The reason I ask these questions is I have a 32GB 3rd generation that I disassembled, cleaned both sides of the logic board and all connectors (except battery) with the “blot and dab” method. Let it air dry for a few hours and put it back together. All seems fine, except the digitizer isn’t responding (since I can’t unlock it, I don’t know if WiFi or headphones work). Sleep/wake responds, volume and home buttons work, and I was able to restore it in iTunes. I have ordered a new digitizer, but wondering if I should take it all apart again and submerge it to be sure.
You never want to blot and dab. One of the reasons for the submersion is that flushes out places you can not, blot, dab or brush. Since you are having problems with something properly functioning I would say yes clean it again and try submerging it this time in isopropyl alcohol.
