I’ve Just had my first “it is time to grease your threaded rod” , which now takes you to -
HMS home page | Bambu Lab Wiki
Which unless you want to send 2 hour looking which that is, it is useless .
Not useless, just search up on the wiki that error, you’ll find it eventually. It will show you pictures of what exactly the threaded rod is as well as how to grease it and other stuff. USE THE SEARCH TOOL. IT SAVES TIME.
Also, the QR code on the printer is usually supposed to direct you to that page itself and if its not then there’s probably something wrong with the firmware.
I advise you (even if its time consuming) to learn about 3D printing errors, it helps maintain the machine and extend its lifetime, and some errors if gone unchecked could be fatal to your expensive 3D printer.
Here is the page you were probably looking for:
Its not as long as it seems, its mostly just pictures and step to step stuff that are easy to understand.
Here’s another guide you may also find useful.
https://wiki.bambulab.com/en/h2/maintenance/period-maintenance
both on the x1c it took me to the right page of the fault not just drop me off at the home page .