Help! Can't use phone after latest update, can't install new OS manually because PC doesn't recognize phone

[sko123]

Hi,

@AnotherElk

“Install” in TWRP’s main menu, then navigate to /cache by tapping “(Up A Level)” and “cache”, and hope fp_update_gms_whatever.zip is still there to select.

Thank you very much. I encountered the same problem after failed update.
This reanimated my phone.
One strange thing was that TWRP complained on reboot that “there is no OS installed and
reboot will fail” (likewise). But after rebooting everything looks fine.