Got the notification that G955WVLU8CTF3 /G955WOYA8CTF3 was available to download (Security patch July 1 2020). Normally it works without a hitch, but after this update it says i have an invalid sim card in the notification tray. I cannot make any calls, text, or use mobile internet. My phone is unlocked and had been working flawlessly prior to this update. Any ideas on how to fix this? Thanks.
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