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Navimow X4 Error Code 9101: Failed to Get Interface Data
Error 9101 appears when the X4 fails to retrieve required interface data. That can affect communication between the mower, its app, or other internal system components.
Reviewed by the RobotMower.help editorial team. Independent guidance based on the manufacturer source linked below.
Quick answer
Navimow defines code 9101 as “Failed to Get Interface Data.”
Press STOP to clear the error. If it remains, restart the mower and place it on the charging station. If the code continues, contact support with the serial number, exact time, and screenshots or video.
Illustrative troubleshooting image; not a manufacturer product photo.
Follow this diagnostic sequence
- Capture the message first. Take an app screenshot if possible so the exact code and surrounding status are preserved.
- Press STOP. Check whether communication returns normally.
- Restart the mower. Wait for a complete shutdown and startup rather than rapidly cycling controls.
- Place the mower on its station. A stable docked state is part of Navimow’s published recovery sequence.
- Check both mower and app status. If one appears connected while the other still reports 9101, record that detail for support.
Do not assume this is only Wi-Fi
The manufacturer describes communication between the mower and the app or other system components. Code 9101 does not prove that your home Wi-Fi is the cause. Avoid resetting routers, accounts, maps, and mower settings all at once because that makes the failure harder to isolate.
What this code actually tells you
“Interface data” is broader than an internet connection. The mower may be unable to retrieve data required by an internal or app-facing component. The official recovery path is therefore a mower-level clear, restart, and docking check.
If the app is generally offline without code 9101, that may call for a separate connectivity workflow. When the code is present, follow the code-specific sequence before changing unrelated network settings.
How 9101 differs from error 9103
Error 9101 concerns retrieving required interface data and may show up as a communication problem. Error 9103 is specifically a database-reading error that may affect maps, settings, or tasks.
Before contacting Navimow support
Prepare the mower serial number, the exact date and time the error occurred, and a screenshot or video showing the message. Also note whether the mower was mowing, docking, charging, starting, or communicating with the app when the code appeared.
Frequently asked questions
No. Navimow says it may affect communication with the app or other system components; the code does not isolate home Wi-Fi as the cause.
That is not part of the manufacturer’s code-specific first-line procedure. Clear the code, restart the mower, and dock it first.
Save the exact time, mower serial number, error screenshot, and whether the mower and app appeared online or offline.
Related troubleshooting guides
Source and independence note
Primary source: Segway Navimow support documentation. RobotMower.help is independent and not affiliated with Segway Navimow or another mower manufacturer. Never open sealed electronics or bypass the mower’s safety systems.