Here's how I do it:
Download the OLDTEAMID APP first
Use NEWTEAMID to package the new app and upload it to testflight
Download the NEWTEAMID app, don’t open the app, don’t open the app, don’t open the app
Use NEWTEAMID to recompile, install and run xcode to debug
Topic:
Code Signing
SubTopic:
Certificates, Identifiers & Profiles
Tags: