Firmware is now available via SamFirm and Frija, but manual entry is required in a lot more cases than previous models. Hopefully that's just because the phone technically doesn't release until Friday, and that they change that on Friday or soon after.
Manual entry is currently required for VZW, CHA, and TMB U firmware, and for all carriers/regions/CSCs of U1 firmware
Manual entry is currently required for VZW, CHA, and TMB U firmware, and for all carriers/regions/CSCs of U1 firmware