Looks like this is where I may have gone astray on reassembly. Symptom is microphone only works with Siri and in speakerphone. Turns out there are three. So the bottom one is need for phone calls. Almost there - will pull apart again and see I can clean up the mic install.

After connecting all worked except microphone during normal phone mode. Turns out both Siri and speaker phone mode use different microphone. Suspect it may have been the adhesive on the small piece connected tot he mic. Will tear down again and take a closer look at the microphone setup.