Just a note for FOTA users--the Partition Tool has the updated firmware for Oct 31 2018. For example, my downloaded directory is labeled: Gemini_x27_31102018 and my flash of it seems okay.
Very short spinning-balls screen compared to Oct 9 2018 firmware. Upon reboot, no SIM card issue and I get a notice telling me the upgrade was successful. In the G's firmware update section, it says I have the latest version.
Jake