if you are rooted you may want to try using Root Explorer you may want to go /system/app/SecMms.apk open it up and check the manifest.xml
and you'll find the package name is : com.android.mms
P.S this is the actual package name from the stock message app in S4.
Package name of stock SMS-app on Galaxy S2/S3/S4? [closed]
문제
What is the package name of the factory-default SMS/MMS ("Messaging") app on the Galaxy S2/S3/S4? It's not using the stock Android app, correct?
해결책
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