There is no Download dSYM option on iTunes connect
with Xcode 8,9,10,11 and above
* Select Window -> Organizer * will open up Organizer window * Right click on Specific Archive and select 'Show in Finder' option * Right click archive in finder and select 'Show Package Contents'. * Project.xcarchive contains dSYMs, Info.plist and Products. * dSYMs folder contains dSYM file of your project.
you may need to go in
activity -> select build which build dSYM file is need here is display download dSYM
click and download specific build dSYM file.