Early editions of the original Xbox One console running on dated firmware are failing to download the latest updates, essentially making the 2013-era systems unusable.
That's according to our sister site Eurogamer's Digital Foundry team, which tried to update and use three separate Xbox One consoles. According to its own testing, all three failed to update, as "systems operating on older firmware revisions error out when connected to Xbox Live."
Even though all three had been updated since the 2013 launch – one was running a 2018 dashboard, and two others a dashboard from 2017 – none of them were able to download the latest firmware, either online or via an offline USB.