Safe to install update obtained over public WiFi?

[Dan Smith]

While we were traveling, my Samsung Galaxy Tab S3, Model SM-T820, Android version 7.0 downloaded a major OS upgrade: 1229.14 MB, "Samsung Experience 9.0 upgrade with Android Oreo," version T820XXU1BRE8/T820XAR1BRE1/ . I'm not even sure where it was downloaded--possibly at a KOA campground! In any case, it wasn't a secure connection. Can I assume that the file will have some kind of signature that insures its integrity, and that the tablet will check and reject it if it has been modified or corrupted? If not, how do I force Android to re-download the upgrade?

 

[Dannydet]

You're safe.

 

[Hadron]

For certain the update will be signed and only installed if the signature checks out.