Max altitude / distance limit
Aircraft stops at limit — not geo-zone. DJI geo-fence, national UTM map, EU Remote ID, Betaflight arming flags.
Contents
Overview
Aircraft stops at limit — not geo-zone.
DJI geo-fence, national UTM map, EU Remote ID, Betaflight arming flags.
Symptoms
Typical "Max altitude / distance limit" signs in flight, app or OSD:
- Max altitude reached
- Return home distance limit
- Cannot fly further
- App error list — every red line before arming.
Common causes
Before replacing parts, rule out software, mechanical and environmental causes:
- DJI fly safe limit 120 m (500 m CE)
- Beginner mode
- Custom limit in app
Tools needed
Prepare before diagnostics — saves time in the field:
- National UTM map
- NAA operator ID
- DJI Fly geo unlock (if permitted)
Step-by-step fix
Work safely: battery off when working on ESC/motors; props removed; after repair — VLOS test flight.
- App → fly safe / max altitude — adjust if legal (120 m Open EU).
- Disable beginner mode after training.
- EASA Open: 120 m AGL — limit may be legally required.
Additional diagnostics
App error list — every red line before arming.
Compare DJI geo with official NAA map.
RID broadcast — third-party RID reader for test.
When to contact service
If any of the following apply — do not fly and contact authorised service:
- Official geo-zone prohibits flight — DJI unlock is not enough.
- Remote ID error for commercial flight.
- Aircraft flips after prop check — mechanical/service.
Prevention
Prevention reduces failure risk and supports EASA Open / VLOS compliance:
- Know local limits
Frequently asked questions
- Is it safe to fly with "Max altitude / distance limit"?
- No if the fault affects navigation, power, ESC or link. Fix on the ground first, then conduct a VLOS test flight in open area.
- How long does diagnosis take?
- Most “Max altitude / distance limit” cases — 15–45 min on the ground. Complex ones (firmware, hardware) may need 1–2 h and service.
- Must I register repair with the NAA?
- No mandatory repair registration, but a maintenance log is recommended for commercial operations.
Authority & sources
A2STS Editorial · Reviewed by: EASA UAS syllabus aligned