[Galaxy S5 Mini Q&A, Help & Troubleshooting] paffo:
Uninstall, or Uninstall updates ?

If there were updates installed, first uninstall them, then button will change to disable.

I have root, so until now I disabled boot animation in /system/build.prop

echo debug.sf.nobootanimation=1 >> /system/build.prop

And removed such files (some of them are only on PLUS branded rom):

/system/lib/libpolaristextprint5v.so

/system/lib/libpolarisviewer5.so

/system/lib/libpolarisviewerSDK.so

/system/preloadedkiosk/kioskdefault.apk

/system/preloadedsso/samsungsso.apk_

/system/preloadedsso/ssoservice.apk_

/system/media/bootsamsung.qmg

/system/media/bootsamsungloop.qmg

/system/media/bootsamsungmini.qmg

/system/media/bootsamsungminiloop.qmg

/system/media/shutdown.qmg

/system/media/shutdown.qmg.cover

/system/media/video/shutdown/shutdown.qmg

/system/priv-app/Audioteka_SERVER_PROD_1.8.0_PREINSTALL_PLAY-pl_[20131002_09.36.25].apk

/system/priv-app/NoiseField.apk

/system/priv-app/NoiseField.odex

/system/priv-app/PhaseBeam.apk

/system/priv-app/PhaseBeam.odex

/system/priv-app/SecLiveWallpapersPicker.apk

/system/priv-app/SecLiveWallpapersPicker.odex

/system/priv-app/SNS.apk

/system/priv-app/SNS.odex

/system/priv-app/SPPPushClient_Prod.apk

/system/priv-app/SPPPushClient_Prod.odex

/system/priv-app/SamsungApps_K.apk

/system/priv-app/SamsungApps_K.odex

/system/priv-app/SamsungBilling.apk

/system/priv-app/SamsungBilling.odex

/system/priv-app/SamsungLinkPlatform.apk

/system/priv-app/SamsungLinkPlatform.odex

/system/priv-app/Samsungservice2_xhdpi.apk

/system/priv-app/Samsungservice2_xhdpi.odex

/system/priv-app/wssyncmlnps.apk

/system/priv-app/wssyncmlnps.odex

/system/priv-app/PCWClientS18.apk

/system/priv-app/PCWClientS18.odex

/system/priv-app/sCloudBackupApp.apk

/system/priv-app/sCloudBackupApp.odex

/system/priv-app/sCloudDataRelay.apk

/system/priv-app/sCloudDataRelay.odex

/system/priv-app/sCloudDataSync.apk

/system/priv-app/sCloudDataSync.odex

/system/priv-app/sCloudQuotaApp.apk

/system/priv-app/sCloudQuotaApp.odex

/system/priv-app/sCloudSyncCalendar.apk

/system/priv-app/sCloudSyncCalendar.odex

/system/priv-app/sCloudSyncContacts.apk

/system/priv-app/sCloudSyncContacts.odex

/system/priv-app/sCloudSyncMemo.apk

/system/priv-app/sCloudSyncMemo.odex

/system/priv-app/sCloudSyncSBrowser.apk

/system/priv-app/sCloudSyncSBrowser.odex

/system/priv-app/sCloudSyncSNote3.apk

/system/priv-app/sCloudSyncSNote3.odex

/system/priv-app/KLMSAgent.apk

/system/priv-app/Kies.apk

/system/priv-app/Kies.odex

/system/priv-app/S-Voice_Android_phone.apk

/system/priv-app/S-Voice_Android_phone.odex

/system/priv-app/Hearingdro_KK.apk

/system/priv-app/Hearingdro_KK.odex

/system/container/ContainerAgent2.apk

/system/container/KnoxPackageVerifier.apk

/system/container/KnoxSecureHandler.apk

/system/container/KnoxSwitcher.apk

/system/container/ShortcutSms.apk

/system/container/resources/CustomBadgeIcon-b2c.png

/system/container/resources/CustomHomeWallpaper-b2b.jpg

/system/container/resources/CustomHomeWallpaper-b2c.jpg

/system/container/resources/knox_bg_02.jpg

/system/container/resources/knox_icon.png

/system/container/resources/knox_icon2.png

/system/app/muzodajnia_20140516_v1.2.8_release.apk

/system/app/plus_8-5e_201404021254.apk

/system/app/plusbank_20140507_v2_0_4.apk

/system/app/Stk.apk

/system/app/Stk.odex

/system/app/SecEmail_K.apk

/system/app/SecEmail_K.odex

/system/app/SecExchange.apk

/system/app/SecExchange.odex

/system/app/LittlestPetShop_FULL_SS_G800F_IGP_POPL_ML_IAP_101_AE38.apk

/system/app/KingdomsandLords_SS_G800F_ML_IGP_POPL_IAP_100_AE39.apk

/system/app/GreenFarm3_FULL_SS_G800F_IGP_POPL_ML_IAP_100_AE37.apk

/system/app/PolarisViewer5.apk

/system/app/PolarisViewer5.odex

/system/app/PlusOne.apk

/system/app/PlusOne.odex

/system/app/PlusStore_2.0.5_20140311.apk

/system/app/pl.samsung.sprc.ahc.num1.apk

/system/app/FWUpgrade.apk

/system/app/FWUpgrade.odex

/system/app/SamsungWidget_ActiveApplication.apk

/system/app/SamsungWidget_ActiveApplication.odex

/system/app/SamsungAppsWidget_Phone_Carrier_VZW.apk

/system/app/SamsungAppsWidget_Phone_Carrier_VZW.odex

/system/app/KNOXAgent.apk

/system/app/KNOXAgent.odex

/system/app/KnoxAttestationAgent.apk

/system/app/KnoxAttestationAgent.odex

/system/app/KnoxSetupWizardClient.apk

/system/app/KnoxSetupWizardClient.odex

/system/app/Bridge.apk

/system/app/Bridge.odex

/system/app/WebManual.apk

/system/app/WebManual.odex

/system/app/PKLTAndroidRbt-2.15.apk

/system/app/ChocoEUKor.apk

/system/app/ChocoEUKor.odex

/system/app/CoolEUKor.apk

/system/app/CoolEUKor.odex

/system/app/Drive.apk

/system/app/Drive.odex

/system/app/RoseEUKor.apk

/system/app/RoseEUKor.odex

/system/app/SamsungSans.apk

/system/app/SamsungSans.odex

/system/app/TravelService_K.apk

/system/app/TravelService_K.odex

/system/app/Books.apk

/system/app/Books.odex

/system/app/EasymodeContactsWidget.apk

/system/app/EasymodeContactsWidget.odex

/system/app/InteractiveTutorial.apk

/system/app/InteractiveTutorial.odex

/system/app/Videos.apk

/system/app/Videos.odex

/system/app/Blurb.apk

/system/app/Blurb.odex

/system/app/MobileTrackerEngineTwo.apk

/system/app/MobileTrackerEngineTwo.odex

/system/app/Music2.apk

/system/app/Music2.odex

/system/app/QuickConnect.apk

/system/app/QuickConnect.odex

/system/app/QuickConnectInteraction.apk

/system/app/QuickConnectInteraction.odex

/system/app/talkback.apk

/system/app/talkback.odex

/system/app/AccuweatherPhone2014_HD.apk

/system/app/AccuweatherPhone2014_HD.odex

/system/app/SCONE_Android_ProxyService.apk

/system/app/SCONE_Android_ProxyService.odex