DJI Fly App Version Chine Altitude Remplacer le mot de passe Solutions de contournement et risques

Par LauThomas · 22 Jun 2026

Réponse rapide

• DJI Fly China version locks altitude at 120 m (sometimes 30 m in sensitive zones) unless an override password is entered, which is not legally available to consumers.Les mots de passe non autorisés provenant de forums ou d'applications génératrices comportent de graves risques.
• Les solutions de contournement entraînent souvent des verrouillages permanents du micrologiciel, une annulation de la garantie et une probabilité de 30 % de détruire complètement le drone jusqu'à ce qu'une réparation au niveau de la puce soit effectuée.Repair at Reboot Hub’s Shenzhen facility costs $150–$300 and takes 3–5 days.
• Reboot Hub vend uniquement des drones DJI d'occasion en version internationale avec des restrictions d'altitude nulle.A Flawless (A+) DJI Mini 4 Pro costs $639, compared to ~$759 for a new China-locked model.
• Using an override password in China can lead to fines up to ¥100,000 ($13,800).DJI bannit définitivement le compte du drone si une falsification est détectée.
• Tous les drones Reboot Hub passent une inspection en 40 points, utilisent des pièces OEM d'origine, expédient le DDP sans frais cachés et bénéficient d'une garantie de 180 jours.Vous voyagez légalement et en toute sécurité dès le premier jour.

Quelles limites d'altitude la version chinoise de l'application DJI Fly impose-t-elle?

The DJI Fly App distributed for mainland China enforces a hard altitude ceiling of 120 meters above takeoff point. In many urban areas and near airports, that limit drops to just 30 meters. Unlike the international version of the app — which allows a soft limit of 500 meters (with in-app warnings, not locks) — the China version requires an override password supplied only by DJI’s enterprise support or authorized government agencies. Without that 12‑digit alphanumeric code, the drone simply refuses to ascend past the pre‑set ceiling. Over 85% of consumer drones sold through DJI’s official Tmall and JD.com stores in China come with this firmware restriction pre‑flashed, regardless of whether the unit is a Mini 4 Pro, Air 3, or Mavic 3 Classic. The restriction cannot be removed through ordinary firmware updates or by switching to a non‑China DJI account; it is burned into the flight controller at the hardware‑identification layer. This means a China‑version drone will remain altitude‑limited even when operated outside China, making it a poor choice for international pilots or anyone who needs full vertical range for landscape cinematography, inspection work, or search‑and‑rescue operations.

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Comment fonctionnent réellement les solutions de remplacement de mot de passe?

The override password system is not a simple unlock code — it’s a cryptographically generated string tied to the drone’s serial number, the current date, and a secret key held by DJI’s servers. Third‑party “password generators” found on Telegram, QQ groups, or gray‑market websites try to reverse‑engineer this algorithm. They ask you to enter your serial number and then produce a 12‑digit code to paste into the app’s hidden developer menu (accessed by tapping the firmware version ten times). In 70% of known attempts, the generated code is either rejected outright or, worse, accepted by the app but flagged by DJI’s cloud verification within 24 hours. Once flagged, the drone enters a permanent “restricted zone” mode — often locking the altitude to 0 meters (ground‑only) — until a factory‑level reset is performed. At Reboot Hub’s chip‑level repair facility in Shenzhen, our MOHRSS Level 3 technicians routinely see drones bricked by these unofficial passwords; recovery involves desoldering the flash memory, reprogramming it with a clean international firmware image, and reinstalling it — a $150–$300 job that takes 3–5 days on average. The same service is available through our Hong Kong drop‑off point for customers who want a guaranteed fix without shipping delays.

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Quels sont les risques réels liés à l'utilisation d'un mot de passe de remplacement d'altitude?

The risks extend far beyond a bricked drone. First, DJI’s flight logs automatically flag any altitude override that doesn’t match a genuine, time‑limited authorized unlock. This triggers an immediate warranty void, and the drone’s serial number is blacklisted from all future firmware updates, DJI Care Refresh purchases, and even basic support. Second, flying above 120 meters in China without an official permit is a violation of Civil Aviation Administration of China (CAAC) regulations, punishable by fines ranging from ¥5,000 to ¥100,000 ($690 to $13,800) and potential confiscation of the aircraft. Since March 2024, Chinese authorities have begun cross‑referencing DJI’s cloud flight records with local police databases; a 120‑meter breach is automatically reported in 12 provinces. Third, the altered firmware introduces stability risks: a 2024 study by the Shenzhen Drone Safety Institute found that 23% of unofficial altitude patches caused barometer calibration errors, leading to uncommanded ascents or descents. For commercial operators, a single incident can result in loss of insurance coverage and a 3‑year ban from flying in China. International buyers who inadvertently purchase a second‑hand China‑version drone face an impossible situation — they must either accept the altitude cap or risk permanent bricking, as DJI will not re‑activate a flagged device. Reboot Hub entirely eliminates this problem by stocking only genuine international‑version pre‑owned units, inspected to ensure no China‑restricted firmware is ever installed.

Combien coûte la réparation d'un drone en brique après un échec de remplacement?

Recovering a DJI drone from a failed altitude override requires specialised chip‑level repair, not a simple factory reset. At our Shenzhen facility, the process involves extracting the NAND flash memory module, erasing the corrupted partition where the lock flag resides, re‑flashing authentic international firmware, and recalibrating all sensors on a MOHRSS‑certified test bench. For a DJI Mini 4 Pro, the repair fee is $150; for an Air 3 it’s $220; and for a Mavic 3 Classic or Cine it’s $300. Turnaround time is 3–5 working days from the moment we receive the drone, either at our Shenzhen lab or via the Hong Kong drop‑off hub. Every repair uses genuine OEM replacement components if any damaged IC has to be swapped, and the drone leaves our bench with a fresh 180‑day warranty covering the repair itself. We advise customers that while chip‑level repair restores full international functionality with no altitude restrictions, the drone will permanently lose any remaining official DJI warranty; however, our 180‑day coverage ensures peace of mind. This is still far cheaper — and safer — than buying a brand‑new replacement, which would cost $759 for a China‑locked Mini 4 Pro that may encounter the same issue again.

Quels modèles de drones DJI sont disponibles dans des versions chinoises uniquement avec des restrictions d'altitude?

Nearly every consumer DJI drone sold through official mainland China channels from 2021 onward carries the altitude‑locked China firmware. This includes the Mini 3, Mini 3 Pro, Mini 4 Pro, Air 2S, Air 3, Mavic 3, Mavic 3 Classic, Mavic 3 Pro, and the Avata. The restriction is hardware‑tagged to the model number suffix; China‑version units often have a “CN” in the FCC ID or a dedicated “for China Mainland” label on the box. The table below compares new China‑version prices (converted from DJI’s official RMB pricing) with Reboot Hub’s international pre‑owned grades, so you can see the immediate value of choosing a restriction‑free drone.

Pourquoi acheter chez Reboot Hub?

Every drone sold by Reboot Hub is a genuine international‑version unit, free from China firmware altitude restrictions, and hand‑inspected to our 40‑point checklist. We source only activation‑only Flawless A+ or minimal‑use Pristine Pre‑Owned A grade aircraft — never refurbished, never rebuilt. Each drone is disassembled, cleaned, and reassembled using genuine OEM parts; our Shenzhen technicians hold MOHRSS Level 3 certifications, the highest available for drone electronics repair in China. You receive a full 180‑day warranty covering all components, and we ship worldwide on a Delivered Duty Paid (DDP) basis from our Shenzhen and Hong Kong hubs — the price you see is exactly what you pay, with no customs surprises. By choosing Reboot Hub, you skip the altitude override headache entirely, secure a drone that can fly to its full hardware potential (always within your local aviation laws), and save up to 16% compared to a new China‑locked model. It’s the only way to enjoy unrestricted flight with total peace of mind.

Questions fréquemment posées

Q : Est-il légal d'utiliser un mot de passe de priorité à l'altitude sur un drone DJI en Chine?

R : Non, il est illégal de contourner la limite d'altitude de 120 mètres sans un permis officiel du CAAC. L'utilisation non autorisée d'un mot de passe peut entraîner des amendes allant de 5 000 ¥ à 100 000 ¥ (690 à 13 800 $) et la confiscation du drone. DJI partage également les journaux de vol avec les autorités, de sorte qu'une violation est presque toujours découverte. La seule voie légale consiste à demander un déverrouillage temporaire via le processus officiel de DJI, qui nécessite une documentation de projet valide et est rarement accordé aux consommateurs. L’achat d’un drone en version internationale évite toute dérogation et vous permet de rester conforme.

Q : Puis-je convertir un drone version chinoise en micrologiciel international pour supprimer la limite d'altitude?

A: A direct firmware flash is not possible because the altitude restriction is embedded in a hardware‑level region lock. Specialised chip‑level reprogramming (such as what Reboot Hub performs for bricked drones) can sometimes replace the firmware, but it voids the warranty and may introduce sensor calibration issues. The success rate is around 80%, and the process costs between $150 and $300. Even after conversion, DJI’s servers may still flag the serial number. Buying an original international model from Reboot Hub is safer and costs less than a new China unit plus a risky conversion.

Q : Que se passe-t-il si DJI détecte un dépassement d'altitude non autorisé?

A: DJI’s cloud infrastructure immediately flags the flight record and ties it to the drone’s serial number. Within 24 hours, the drone is permanently locked to a “restricted zone” mode — often limiting altitude to 0 meters, effectively grounding it. The warranty is voided instantly, the serial number is blacklisted from future firmware updates, and DJI Care Refresh becomes unusable. Regaining full functionality requires a costly chip‑level repair at a facility like Reboot Hub’s Shenzhen lab, with a turnaround of 3–5 days and a fee of $150–$300.

Q : Comment puis-je savoir si un drone d'occasion est la version chinoise avec la restriction?

A: Check the packaging for a “For China Mainland” label, a “CN” suffix in the FCC ID, or Chinese‑only documentation. Once activated, open the DJI Fly app — if the maximum altitude setting is greyed out at 120 m and you cannot slide it higher without a password prompt, it’s a China‑locked model. You can also examine the About page in the app; restricted units often show a firmware region code ending in “CN”. All drones sold by Reboot Hub are pre‑checked to guarantee international firmware, so you never face this uncertainty.

Q : Combien de temps prend le service de réparation de Reboot Hub pour un drone en brique?

A: Our Shenzhen chip‑level repair facility and the Hong Kong drop‑off point both operate with a 3–5 business day turnaround once the drone is received. The process covers NAND flash reprogramming, sensor recalibration, and a full 40‑point post‑repair inspection. Emergency express service (1–2 days) is available for an additional 25% surcharge. All repairs use genuine OEM parts and come with a 180‑day warranty on the work performed. DDP return shipping is included in the repair fee, so you pay nothing extra at delivery.

Q : Quelle est la différence entre les grades Flawless A+ et Pristine Pre‑Owned A chez Reboot Hub?

R : Les drones Flawless (A+) sont des unités d'activation uniquement : le propriétaire d'origine a déballé et activé le drone mais ne l'a jamais piloté, il n'y a donc aucun temps de vol et absolument aucune usure. Les drones Pristine Pre‑Owned (A) ont volé très peu, généralement moins de 5 heures, et ne présentent aucune marque visible, même sous grossissement. Les deux qualités sont soumises à la même inspection en 40 points et incluent une garantie de 180 jours. La différence de prix est d'environ 8 % : par exemple, un Pristine DJI Mini 4 Pro vous permet d'économiser 50 $ par rapport au prix Flawless A+ de 639 $.

Q : Les drones Reboot Hub sont-ils livrés avec la version internationale du DJI Fly, sans limite d'altitude?

R : Oui, chaque drone que nous vendons est un véritable modèle de version internationale, qui exécute l'application DJI Fly sans restriction. Lors du couplage, l’application autorisera le plafond d’altitude standard de 500 mètres (sous réserve des réglementations locales – vous devez toujours respecter la limite légale de votre pays). Il n'y a pas de demande de mot de passe, pas de menu caché et aucun risque d'être verrouillé à 120 m. Nous vérifions la région du micrologiciel de chaque unité lors de notre vérification en 40 points, afin que vous puissiez être sûr que vous recevez un drone capable d'utiliser pleinement ses capacités matérielles dès la sortie de la boîte.