Samsung s8 wont install the security patch 1 oct 2018. After download says invalid

[d0ngtae]

I have download several times. What should i do
I have tried cleaning the cache via cleaner app.
Restarted phone
Deleted tons of apps.
Not working

 

[chanchan05]

Use the SmartSwitch for PC/Mac.

 

[B. Diddy]

Welcome to Android Central! Is this an official update being pushed over-the-air, or are you downloading it yourself from a website and trying to manually install it?