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● Checked Nov 11, 2026From Segway Navimow support
Segway Navimow error
5101

Navimow X3 "GNSS antenna error" (5101): what it means and the fix

Steps3
ToolsNone
PartsNone

Works for Navimow X3 series (X315, X330, X350 and X390).

Short answer

What it means: Segway names code 5101 on the Navimow X3 series "gnss antenna error". The mower stops and shows the code in the app until it is cleared.

Quick fix: Check that the GNSS antenna is connected properly.

Fix it in 3 steps

  1. Check that the GNSS antenna is connected properly.
  2. If it is not, mount it and connect it to the charging station.
  3. Press STOP to clear the code.

Fixed when: The code clears and the mower resumes its task.

Still showing GNSS antenna error?

The code comes back after a restart. Email Navimow support (US: [email protected]) or use Live Chat in the app, with the serial number, the date and time of the error and a video if you can. Contact Segway Navimow support. Warranty: Up to 3 years on the mower, per Navimow. Segway Navimow support →

Parts that fix this

Charging dockFor Navimow X3 on AmazonCheck price →Check the part fits your model. Affiliate links: we may earn a commission at no cost to you.

Other Navimow X3 errors

6106Motion planning error›3107Left wheel motor error›7106GNSS module error›6116Channel access error›2106Battery temperature too low›9110Program crash›9108Program crash›3111IMU data error›All 66 Navimow X3 codes →

Keeps happening? Compare before you replace

Segway Navimow X390$4,499 · Top X3 model with RTK and vision for lawns up to 2.5 acresCheck price on Amazon →
Segway Navimow X350$2,799 · Fast RTK and vision mower for big, open lawns up to 1.5 acresCheck price on Amazon →
Segway Navimow X390 vs Yarbo Y40 Core with Lawn Mower ProPoint by point

Sources

  1. Segway Navimow support: X3 error code 5101, GNSS antenna error
  2. Segway Navimow support: Navimow X3 error code section
Charging dock for Navimow X3Part on AmazonCheck price →