DJI Fly App中國版海拔覆蓋密碼解決方法與風險

經過 LauThomas · 22 Jun 2026

快速解答

• 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.來自論壇或生成器應用程式的未經授權的密碼會帶來嚴重的風險。
• 變通辦法通常會導致韌體永久鎖定、保固失效，在執行晶片級修復之前，無人機有 30% 的機會完全變磚。Repair at Reboot Hub’s Shenzhen facility costs $150–$300 and takes 3–5 days.
• Reboot Hub僅銷售國際版二手 DJI無人機，零高度限制。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).如果偵測到篡改，DJI將永久禁止無人機帳戶。
• 所有 Reboot Hub 無人機均透過 40 點檢驗，使用正品 OEM 零件，無隱藏費用 DDP 發貨，並享有 180 天保固。從第一天起，您就可以合法、安全地飛行。

DJI飛行App中國版有何海拔限制？

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.

相關：英國室內婚禮最安靜的無人機？ DJI Mini 5

密碼覆蓋解決方法實際上是如何運作的？

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.

相關：中國大量訂購DJI無人機：如何解決運費問題

使用高度覆蓋密碼的真正風險是什麼？

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.

覆蓋失敗後修復變磚的無人機需要多少錢？

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.

DJI 無人機機型有哪些僅限中國版本且有高度限制？

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.

為什麼從Reboot Hub購買？

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.

常見問題解答

問：DJI無人機在中國使用高度覆蓋密碼是否合法？

答：不可以，未經CAAC官方許可，繞過120公尺高度限制是違法的。未經授權使用密碼可能會導致 5,000 日元至 100,000 日元（690-13,800 美元）的罰款，並沒收無人機。 DJI 還與當局共享飛行日誌，因此幾乎總是發現違規行為。唯一合法的途徑是透過 DJI 的官方流程請求臨時解鎖，這需要有效的專案檔案，並且很少授予消費者。購買國際版無人機可以避免任何超控的需要，並讓您保持合規性。

問：我可以將國版無人機轉換為國際韌體以取消高度限制嗎？

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.

問：如果 DJI 偵測到未經授權的高度超控，會發生什麼事？

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.

問：如何判斷二手無人機是否為有限制的國版？

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.

問：Reboot Hub 變磚的無人機維修需要多久？

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.

問：Reboot Hub 的 Flawless A+ 和 Pristine Pre-Owned A 等級有什麼不同？

答：無瑕 (A+) 無人機是僅啟用單位 - 原主人開啟包裝並啟用了無人機，但從未駕駛過它，因此飛行時間為零，並且絕對沒有磨損。原始二手 (A) 無人機的飛行時間極短，通常在 5 小時內，即使在放大下也沒有可見的痕跡。兩個等級均經過相同的 40 點檢查，並包含 180 天保固。價格差異約為 8%：例如，與 Flawless A+ 的 639 美元價格相比，Pristine DJI Mini 4 Pro 可以節省 50 美元。

問：Reboot Hub無人機是否配備國際版DJI Fly，無高度限制？

答：是的，我們銷售的每架無人機都是正版國際版型號，執行不受限制的 DJI Fly 應用程式。配對後，該應用程式將允許 500 公尺的標準高度上限（根據當地法規 - 您仍然必須遵守您所在國家/地區的法律限制）。無密碼提示，無隱藏選單，無鎖定120M的風險。我們在 40 點檢查中驗證每個裝置的韌體區域，因此您可以確信您收到的無人機開箱即用，可以充分利用其硬體功能。