I also have the mic cut out when used on speakerphone, due
to noise cancellation of sound coming out of speaker. iPhone 13 pro purchased 11JL22 from
Verizon. Zag screen protector and speck
presidio 2 case (have only ever owned speck cases).
The cut out was at its worst when talking to people with a
lot of background noise. My sister on
her wireless land line became my worse test case. (when I called her on her iPhone 12 the cut
out wasn’t as bad) Our 2 test cases (for
worst and repeatable cut out) became running water in the sink and Crinkly bag
(while I just counted aloud). As it
turns out removing the case 90% solves the problem. Running water was reduced to no cut out. Crinkly bag caused garble but was still
understandable till the bag drowns out the call. This performance was similar to my previous
iPhone 8. Thanks ERSSERSS for posting 15
times about removing the case.
There are no posts on what case works… Also frustrating is
the Apple store and Verizon “looking at you like you have a third eye in the
middle of your forehead” (credit bemrik3) when you describe the problem your
having with your new $1000 phone… knowing 1000’s of people have already
complained about it.
I was able to produce no case performance by removing (with
a dremel) from the inside, all parts of the case that contact the bottom
stainless flat of the phone (bottom radius’s of case not modified). The ovals for the mic, lightening and speaker
were also enlarged. The front and back
edges and the web between the ovals are still there. ie if you drop the phone
of a flat surface the case will still prevent the phone from contacting.
Note: before I went to the dremel I tried to isolate speaker
sound from mic with a 1mm thick mastic (soft rubber) between the case and the
bottom stainless edge of the phone. This
had no reduction in cut out. (ovals for
mic, lightening and speaker were open same size as case)