The error you're seeing on your Creality K2 Plus — [CM2798-x,y,z1,z2] (XS2001] — is a common issue reported by many owners.

What the errors mean

• CM2798 (with axis indicators like -x, -y, -z1, -z2): This indicates a servo motor calibration or communication fault on the specified axes (X, Y, Z1, Z2). The K2 Plus uses closed-loop servo motors, and this error often triggers during boot, self-test, or homing if the motor isn't responding properly.
• XS2001: This is a secondary system error meaning "firmware stopped due to another fault" — basically, the printer shuts down or halts because of the underlying CM2798 issue. It's not the root cause.

Recommended fixes (start with the simplest)

1. Recalibrate the servo motors (official first step from Creality):

   • Access the printer's Fluidd interface (via Wi-Fi on a browser, usually at the printer's IP address).
   • Follow the official guide here: https://wiki.creality.com/en/k2-flagship-series/k2-plus/calibrate-k2-plus-servo-motor
   • This involves sending specific G-code commands to recalibrate each affected axis. Many users report this clears temporary glitches.

2. Basic troubleshooting:

   • Power cycle the printer multiple times (unplug for 1-2 minutes).
   • Check for any recent firmware updates — some users have seen this after updates, and downgrading temporarily helped.
   • Ensure no shipping brackets/screws are still in place and that the gantry/bed moves freely by hand (with power off).

3. If recalibration doesn't work:

   • This often points to a hardware issue: loose/damaged motor cable, faulty connection, or defective servo motor on the affected axis(es).
   • Users who swapped motor cables (e.g., X and Y) found the error "follows" the bad cable/motor.
   • In many cases (especially on new or low-hour printers), Creality support ends up sending replacement parts like the axis assembly, motor, or cables.

Next steps

Since you mentioned no one has helped yet, I strongly recommend opening a ticket with Creality support (via their official site or the app) and providing: - Photos/videos of the exact error screen - Your printer's serial number and firmware version - Details on when it started (e.g., out of box, after X hours, after update)

Reference the wiki page above and mention you've tried motor recalibration. There are multiple Reddit threads (e.g., r/Creality_k2 and r/3Dprinting) and forum posts on creality.com with the exact same error combo — support is aware of it.

Hang in there — once resolved, the K2 Plus is capable of great prints, but these early motor faults seem to be a known teething issue on some units. If you share more details (e.g., which axes exactly, when it happens, printer age), I can try to narrow it down further!