Why a DJI Mini 3 Firmware Update Gets Stuck
A DJI Mini 3 firmware update stuck in progress usually points to a connection, power, or software issue rather than a damaged drone.
Understanding the most common causes can help you finish the update without risking the aircraft, remote controller, or app data.
Firmware updates for the DJI Mini 3, DJI Mini 3 Pro, and compatible DJI RC or RC-N1 controllers typically run through the DJI Fly app or DJI Assistant 2.
During that process, the drone and controller must maintain a stable link long enough to download, verify, and install the package.
Common causes of an update freeze
- Weak or unstable Wi-Fi or mobile data during download
- Low battery on the aircraft, remote controller, or smartphone
- USB-C cable problems when using DJI Assistant 2
- Outdated DJI Fly app version
- Temporary server-side delays on DJI’s update servers
- Interruption from phone settings, battery saver modes, or background app limits
- Corrupted cache or a partially downloaded firmware package
What the DJI Fly App Is Actually Doing During the Update
The DJI Fly app does more than simply install a file.
It checks hardware compatibility, downloads the firmware package, verifies the file, transfers it to the drone or controller, and then flashes the new version.
If the progress bar appears stalled, the app may still be validating or transferring data in the background.
It is normal for some steps to take several minutes, especially if the firmware package is large or the connection is slow.
A true failure usually shows an error message, repeated restart prompts, or no change after a long period with stable power and connection.
Before You Try Anything: Safety Checks
Before troubleshooting a DJI Mini 3 firmware update stuck issue, make sure the drone is on a stable surface and the batteries are charged above 50 percent.
DJI generally recommends full or near-full batteries for firmware installation to reduce the risk of interruption.
- Charge the aircraft battery and remote controller fully
- Use a reliable USB-C cable if updating through a computer
- Remove propeller guards or accessories that are not needed
- Close other apps on your phone
- Keep the drone, controller, and phone powered on until the process clearly ends
How to Fix a DJI Mini 3 Firmware Update Stuck on Downloading
If the update stalls while downloading in DJI Fly, the issue is often network-related.
Switch to a stronger Wi-Fi connection or try mobile data if your signal is better.
On iPhone or Android, disable VPN services, battery optimization for DJI Fly, and any app that may restrict background data.
Try these steps first
- Force close DJI Fly and reopen it.
- Toggle airplane mode off and on, then reconnect to the internet.
- Switch between Wi-Fi and cellular data.
- Restart the phone or tablet.
- Check whether DJI Fly needs its own app update from the App Store or Google Play.
If the download repeatedly fails, clear the app cache on Android or reinstall DJI Fly on iOS and Android.
This can remove a corrupt partial file that prevents the update from starting correctly.
How to Fix a DJI Mini 3 Firmware Update Stuck on Transferring
If the file downloads but stops while transferring to the drone or controller, focus on the physical connection and battery status.
A loose cable, dirty USB-C port, or controller disconnection can interrupt the transfer even when the app still appears active.
- Disconnect and reconnect the USB-C cable
- Inspect both USB-C ports for dust or lint
- Use the original cable or a high-quality data cable
- Keep the smartphone screen unlocked
- Do not switch apps while the transfer is running
For the DJI RC-N1, the smartphone connection must remain stable throughout the process.
For the DJI RC with built-in display, keep the controller powered on and avoid letting it sleep.
A momentary disconnect can force the firmware process to restart.
How to Fix a DJI Mini 3 Firmware Update Stuck on Installing
An installation stall is more serious than a slow download, but it still may recover if power remains stable.
During installation, the drone may restart one or more times, the fan or status lights may change, and the app may appear frozen while the system flashes firmware internally.
If the progress bar stays unchanged for an unusually long time, wait a bit longer before interrupting.
Sudden power loss during installation can create a partial firmware state that requires another repair attempt.
Best actions during installation
- Leave the aircraft and controller powered on
- Do not remove the battery unless the app clearly reports failure
- Keep the remote controller close to the drone
- Avoid touching the power buttons
- Wait for the app to show completion, a reboot prompt, or a specific error code
When to Use DJI Assistant 2 Instead of DJI Fly
If the DJI Mini 3 firmware update stuck problem continues in the DJI Fly app, DJI Assistant 2 is the next best option.
DJI Assistant 2 for Consumer Drones allows a direct computer connection and often works better for recovering updates that fail on a mobile device.
This method is especially useful if the app on your phone is unstable or the controller connection keeps dropping.
Use a compatible USB-C cable and a computer with the correct DJI software installed.
Always download DJI Assistant 2 only from DJI’s official support pages.
Benefits of using DJI Assistant 2
- More stable wired connection
- Clearer firmware version controls
- Better recovery path after an interrupted update
- Useful for syncing aircraft and controller firmware versions
What If the Drone and Controller Show Different Firmware Versions?
After a successful update, the aircraft, remote controller, and DJI Fly app should usually align with compatible versions.
If one device updated and another did not, the app may still prompt you to complete the remaining component.
This is common after a partial firmware session.
Run the update again and check both components individually.
In some cases, the controller update must be completed first, then the aircraft update, or vice versa, depending on the package DJI released for that model.
How to Prevent Future Firmware Update Problems
Prevention is mostly about controlling variables.
A stable internet connection, charged batteries, and updated software reduce the chance of another DJI Mini 3 firmware update stuck event.
- Check for DJI Fly updates before major firmware installs
- Charge all batteries fully before starting
- Use a reliable USB-C cable and avoid hubs or adapters
- Install updates in a low-interference environment
- Keep at least some storage free on your phone
- Reboot the phone and controller before an important update
It also helps to update when DJI’s servers are likely to be less busy.
If a release has just launched, waiting a few hours or a day can sometimes avoid server congestion and repeated download failures.
When to Contact DJI Support
Contact DJI Support if the drone will not complete the update after multiple attempts, shows persistent error codes, or becomes unresponsive after a failed firmware flash.
Provide the model name, current firmware version if available, the exact point where the process gets stuck, and whether you used DJI Fly or DJI Assistant 2.
Detailed information helps support agents determine whether the issue is related to the aircraft, remote controller, cable, mobile device, or firmware package itself.
If the drone still powers on normally, avoid factory-resetting anything until support advises it.
Useful Terms to Know During Troubleshooting
- Firmware: The software that controls the drone’s core functions
- DJI Fly: DJI’s mobile app for setup, updates, and flight control
- DJI Assistant 2: Desktop software for firmware management and recovery
- RC-N1: DJI remote controller that connects to a phone
- DJI RC: DJI controller with a built-in screen
- USB-C data cable: A cable that supports both power and data transfer, not charging only
If you are dealing with a DJI Mini 3 firmware update stuck issue right now, start with the simplest checks first: power, cable, app version, and connection stability.
In many cases, the update succeeds once the environment is stable enough for the firmware package to finish downloading and installing.