Installer doesn't work (404 in console)

[ajs256]

When attempting to flash Omega:

Failed to load resource: the server responded with a status of 404 ()
downloader.js:38 [DOWNLOAD] storage/object-not-found

in the console.

It's trying to load https://firebasestorage.googleapis.com/v0/b/omega-numworks.appspot.com/o/firmwares%2FO2.0.2-E15%2Fn%3F%3F%3F%3F%2Fepsilon.onboarding.external.bin, and I think it's 404ing because it recognizes my calculator as an N???? instead of an N0110.

I have already jailbroken and have the Phi bootloader - both slots are Epsilon 18.2. I get the error when I boot from either slot or the Phi softloader (4 + Reset).