This happens because the production build and "beta" build is signed with a different key. You will need to uninstall the previous build first.
tag:testflight same signature issue android
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24-09-2022 - |
Question
After uploading my new build (production) to Test Flight, when I try to install my app it says already used signature with the same app name. Is it possible to install app over Test flight without uninstalling old one?
Solution
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