Unlocked N910A won't update from 5.1.1 to 6.01 says already has latest update

[sfeinbe]

I was able to hide spdclient.apk, but com.samsung.sdm does't exist on my phone according to debloater. As an aside, debloater revealed that 8 files were hidden before I did anything:
ContainerAgent2.apk
EmergencyLauncher.apk
KnoxBBCProvider.apk
KnoxKeyguard.apk
KnoxShortcuts.apk
KnoxSwitcher.apk
KnoxTrustAgent.apk
KnoxVerifier.apk

 

[nahoku]

Not sure if AT&T phones are different but both com.policydm, and com.samsung.sdm are on both my Note 4's. As to why some some files are pre-hidden, I have no idea, but it was the same on my phones. I prefer Knox disabled, so it works for me. I believe the Debloater thread covers these pre-hidden items.