Segway Navimow lost RTK signal or poor positioning: causes and fixes

A Navimow that loses RTK signal or shows Poor positioning usually has an antenna or charging station too close to walls, trees or roofs, old firmware, weak WiFi or 4G for Network RTK, or a damaged antenna cable. Here are the fixes from Segway Navimow's support articles.

Researched by Riley Hart · updated Oct 27, 2026 · How we research

Short answer

Move the RTK antenna and charging station at least 6.6 ft from walls, trees, houses and fences, with more than 110 degrees of open sky. Update the firmware with the mower docked and above 20% battery. If you use Network RTK, pick WiFi only or 4G only, whichever is stronger, and check coverage for your postcode. Use the Satellite Signal Analyzer in the app to find a better spot.

Find your code

What you see	Likely cause	Fix
Poor positioning. Scheduled mowing delayed.	Charging station near obstructions, so it and the mower share few satellites	Move the station to open sky, 6.6 ft from walls and trees, out of shade, on flat ground.
Flashing yellow light with poor positioning	Charging station placement problem	Relocate the station and check the new spot in the Satellite Signal Analyzer.
Weak signal on an antenna setup	Antenna near walls, trees, a house or fence	Keep the antenna 6.6 ft from structures with more than 110 degrees of open sky. Mount on a roof or wall for small lawns.
Orange dots in Satellite Signal Analyzer	Satellite seen by the antenna but not the mower	Move the antenna or station toward a spot with more blue dots, which are seen by both.
Signal drops after a pet or yard work	Frayed antenna cable, or a loose or dirty extension cable joint	Replace a frayed cable. Unplug, clean and reconnect extension cable joints.
Positioning poor on Network RTK	No or weak NRTK coverage in your area	Check coverage for your postcode. If none, install the antenna and switch to RTK.
Map position differs from the real mower	Weak WiFi or 4G delays map loading and NRTK correction data	Set WiFi only or 4G only, use the stronger one, and improve WiFi with mesh or an extender.
Mower drifts while mapping	Antenna placement, large zones or losing connection during manual mapping	Split the lawn into smaller zones and stay within 19.7 ft while mapping by hand.
Error 4006 or 5001	GPS module or antenna abnormal	Restart and try again. Contact after sales if it persists.
Bad positioning after an update or for weeks	Outdated firmware	Update under Settings, Mower, Device Management.
Poor positioning during a storm	Bad weather weakens satellite signal	Wait for better weather. The schedule resumes.

From Navimow Academy positioning, poor positioning and mapping drift articles, the Network RTK page and the Navimow error code table, checked October 27, 2026.

Still broken?Repair or replace

If the same code comes back after the fix, contact Segway Navimow support first, especially under warranty. Out of warranty, compare the repair quote with a new robot's price and 3 year cost.

Compare robot lawn mowers

PartsSegway Navimow parts

Brushes, filters, blades and batteries with prices checked daily.

Segway Navimow i206 AWD parts

I own a Segway NavimowAlert me

One email for recalls, bad updates and new fixes for Segway Navimow. Nothing else.

Segway Navimow recalls

Oct 26, 2026No Segway Navimow robot recall found
US Consumer Product Safety Commission database, checked dailyOK

Didn't find it?Ask about your Segway Navimow

We read every question. When several owners ask the same thing, the answer goes on this page.

1. Restart and update

Turn the mower off, place it on the charging station for a short charge, close the app and reopen it. Then update firmware under Settings, Mower, Device Management, Firmware Version. Navimow's conditions for an update are: mower on the station, battery at least 20%, no mowing scheduled in the next hour, and a stable internet connection. Navimow names outdated firmware as a common cause of weak positioning.

2. Move the antenna and charging station

On RTK setups, both the antenna and the charging station act as references, and they must see the same satellites as the mower. Navimow's placement rules:

Antenna: at least 6.6 ft from walls, dense trees, houses and fences, with more than 110 degrees of clear sky. On a small lawn, mount it on a roof or wall.
Charging station: at least 6.6 ft from trees, walls and houses, not in shade, on flat ground, with 1.6 ft clear on each side and 6.5 ft in front.
Keep the station away from generators and substations.
Use Settings, Satellite Signal Analyzer. Blue dots are satellites seen by both mower and antenna. Orange dots are seen by the antenna only. Move toward more blue.

3. Network RTK and connectivity

Network RTK uses an internet correction service instead of a local antenna, and Navimow says it is not available everywhere yet. Enter your postcode on the Network RTK page. If there is no coverage, install the included antenna and switch to RTK. The map does not need redrawing when you switch.

Weak WiFi or 4G does not weaken GPS itself, but it delays map loading and can cut NRTK correction data. In Network Settings, choose WiFi only or 4G only, whichever is stronger, instead of auto switching. A better router, a mesh system or an extender helps large yards.

4. Check the antenna cable

Pets can fray the antenna cable, and extension cable joints can loosen or fill with debris. Unplug the joints, clean them and reconnect. Replace a damaged antenna cable. Navimow also sells a Signal Enhancement Antenna and an Antenna Mounting Kit as accessories for hard to reach spots.

5. When to contact support

If the signal is still poor after moving the antenna and station, updating firmware and fixing the network, contact Navimow at [email protected]. Error 4006 or 5001 points to the GPS module or antenna, which is a support case. These fixes come from Navimow's support pages; we do not test mowers hands on.

If your whole yard sits under heavy tree cover, satellite positioning will always struggle. In that case a model that leans on vision or LiDAR, or a wire guided mower, may suit the lawn better.

Segway Navimow models in our rankings

Lawn · Segway Navimow X430 Best for large complex yards with steep slopes $2,499 Check price →Full profile

Lawn · Segway Navimow i210 AWD Best for quarter acre yards with gentle hills $1,299 Check price →Full profile

Questions people ask

What does Poor positioning. Scheduled mowing delayed. mean on Navimow?

The mower cannot get accurate satellite positioning, most often because the charging station or antenna is near walls, trees or roofs. Move them to open sky.

Where should I put the Navimow RTK antenna?

At least 6.6 ft from walls, dense trees, houses and fences, with more than 110 degrees of open sky. A roof or wall mount works on small lawns.

Does weak WiFi affect Navimow positioning?

Not GPS directly, but it delays map loading and can interrupt Network RTK correction data. Choose the stronger of WiFi only or 4G only.

Do I need to redraw the map when switching from Network RTK to RTK?

No. Navimow says the map is kept, though the switch can take a few minutes.

What do the blue and orange dots in the Satellite Signal Analyzer mean?

Blue satellites are seen by both mower and antenna. Orange ones are seen only by the antenna.