DJI Mini 4 Pro Disassembly & Repair: Ultimate Guide
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- čas přidán 30. 06. 2024
- Learn to disassemble and repair your DJI Mini 4 Pro, from the damaged drone body, camera gimbal, arm shaft, and ESC board, with this step-by-step guide!
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📌 Useful links
DJI Mini 4 Pro Gimbal Disassembly: • Ultimate DJI Mini 4 Pr...
Gimbal Calibration Tutorial: • DJI Mavic Gimbal Calib...
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🚁 DESCRIPTION
Welcome to HowFixit! In this repair guide, I’ll show you how to disassemble the DJI Mini 4 Pro to repair damaged or faulty parts. Whether you're dealing with a broken camera gimbal, malfunctioning vision sensors, or a faulty ESC board, this video has got you covered. We'll guide you through the entire process, from removing the top cover to reassembling the drone, ensuring you can confidently replace parts like the motherboard, GPS module, arm shafts, and more.
If you find this guide helpful, please give us a thumbs up and subscribe to HowFixit for more tech repair guides. Visit our website for additional insights and DIY tips. Remember, every tech challenge is an opportunity to learn and grow. Thanks for watching, and have a safe flight!
Tools Needed:
- Phillips 1 Screwdriver
- Torx T5 Screwdriver
- Plastic pry tools
- Tweezers
- Glue gun
- Soldering iron (if replacing the ESC board or drone arms)
Key Steps Covered:
- How to safely disassemble the DJI Mini 4 Pro.
- Detailed guide on replacing the camera gimbal.
- Steps to remove and replace the GPS module and motherboard.
- How to handle and replace vision sensors and arm shafts.
- Tips for ESC board and arm replacement.
- Troubleshoot common issues like GPS signal problems, motor errors, and more.
- Reassembly tips to ensure your drone is as good as new.
- For each replacement part or tool mentioned, links are provided in the description below to help you find exactly what you need.
Time Code:
00:00 Introduction to Drone Disassembly Guide
00:27 Repair Tools for DJI Mini 4 Pro
01:05 Disassembly
01:47 Removing the Top Shell Cover
03:00 Removing the Camera Gimbal
06:38 Removing the GPS Module
07:52 Removing the Motherboard
11:05 Removing the upper and front vision sensors
11:42 Removing the Bottom Cover
12:36 Removing the Downward Vision Sensors
13:57 Removing the Front Arm Shafts
15:29 Removing the Rear Arm Shafts
15:55 Replacing the Arm Motor and ESC Board
16:41 Completely disassembled DJI Mini 4 Pro
16:55 Reassembly
33:35 Final check
🌟 FAQ:
Q: What tools do I need to disassemble the DJI Mini 4 Pro?
A: You will need a Phillips 1 screwdriver, Torx T5 screwdriver, plastic pry tools, tweezers, a glue gun, and a soldering iron if replacing the ESC board or drone arms.
Q: How do I replace the camera gimbal on my DJI Mini 4 Pro?
A: Disconnect the gimbal transmission cable, remove the adhesive pad, and carefully detach the rubber holders to remove the gimbal. Follow the video guide for detailed steps.
Q: Can I replace the ESC board myself?
A: Yes, but you will need soldering skills and tools. If you are not comfortable with soldering, consider sending your drone to DJI service for repair.
Q: Where can I find the replacement parts for DJI Mini 4 Pro?
A: Links to all the necessary tools and replacement parts are included in the video description below.
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#djimini4pro #howfixit #dronefix #diy - Věda a technologie
The reassembly section was incredibly clear. Thanks!
Omg thank you very much sir this very helpfull
Nice drone, probably could be use in some military operations. Many thanks for detailed repair instructions 🚀⚽️
I tried to remove the front arm shaft but the screw got damaged. I should visit an expert :/
very nice super
Can you provide more details on calibrating the GPS module after replacement? Is it done entirely through the DJI app?
The calibration process only needs to be done when it says it needs to be done. When you turn on the drone, you will see a calibration request, in any case, here are instructions on how to do it yourself: Enter the flight interface in DJI Fly, tap “···” > “Safety” > “Sensor” > “IMU” > “Calibration”, tap “Calibration”, and follow the on-screen instructions to properly place the aircraft.
Hello, I need new top vision sensors. Can I buy a new one, replace the old one, and use it immediately, or will it need to be calibrated first?
Thanks for answer🙏🏻🙏🏻🙏🏻
Mini 4 Pro has auto-calibration of the vision sensors, maybe it will work if replaced, but I haven’t tested it. I hope that soon we will get the first results of replacing the vision sensors module and auto-calibration through the DJI Fly App
@@howfixit Thank you 🙏🏻
Please let me know if it works, I bought mini 4 pro and it came with top sensor damage, i want to know if I can easily change
Hi, great video! Only I'm looking for a way to replace the motor without actually taking off the arm and dissassembling the whole drone. There are three screws underneath the motors with a round sticker covering them. Would it be possible to just remove these screws and then cut and crimp the wires together, then screw the new motor back in place?
Theoretically, this can be done, but the crimped wires have worse contact than soldering directly to the ESC module, and also this connection may be weak to vibration from the motor.
I wouldn't do this, but here are some recommendations if you're determined:
Option 1 - Crimping Method
Slide a piece of heat shrink tubing over each wire on the drone side before connecting.
Use a crimping tool to connect each corresponding wire from the drone to the new motor. Ensure the connections are tight and secure.
Slide the heat shrink tubing over the crimped connections and apply heat to shrink it, providing insulation and protection.
Option - Soldering Method (Recommended)
Twist each corresponding pair of wires together.
Solder the twisted wires for a strong and reliable connection.
Slide the heat shrink tubing over the soldered joints and apply heat to shrink it, ensuring the connections are well insulated.
@@howfixit Thank you for the detailed response, that is really helpful :)
Hey, sorry for asking here. I hit a wall. Couldn't stop because wind was strong. It didn't broke. But front arm is very loosen. Is it broken inside? Should i send it to service. I don't know.
Hola cómo estás, El video está muy bueno pero lo podrías subtitular en español por favor.
Gracias
I was told that the existing sensors would fail and not work after the motherboard replacement. Is it true that the motherboard replacement should be done together with the sensors? If such an incompatibility occurs, is it possible to match the existing sensors to the motherboard?
Almost everything can be calibrated, some using the DJI Fly app or DJI Assistant 2, but you will need special software to calibrate the camera gimbal or camera module.
For example, when the DJI Mini 3 Pro drone was released, it was impossible to calibrate anything. But after some time it became possible to calibrate the vision sensors through DJI Assistant 2 (although at the time of release, the Mini 3 Pro was not supported in DJI Assistant 2), and you can also calibrate camera gimbal and camera module in third-party software. So, support for DJI Mini 4 Pro with different software is a matter of time.
What should I do if the ribbon cable glue is too difficult to remove? Are there any tricks to making this step easier?
If you find that the ribbon cable glue on your DJI Mini 4 Pro is too difficult to remove, there are several techniques and tools you can use to make this process easier and safer. Proper handling is crucial to avoid damaging the delicate ribbon cables and connectors. Here are some tricks on how to tackle stubborn glue:
- Isopropyl Alcohol (99% purity): Helps to dissolve the adhesive without harming the components. Dampen a microfiber cloth or a cotton swab with isopropyl alcohol. Gently dab the glued area, allowing the alcohol to penetrate and soften the adhesive. Let the alcohol sit for a minute or two. This gives it time to weaken the adhesive bond. After softening, use a plastic spudger or pry tool to carefully lift the ribbon cable. Start at a corner or edge and work slowly to avoid tearing the cable.
- Heat Source: A heat gun or hair dryer can soften the glue, but don't overheat! One of the most effective ways to make glue removal easier is by softening it first. Use a heat gun or hair dryer on a low setting to gently warm the glued area. Aim to heat the glue just enough to soften it, making it easier to peel away. Be cautious not to overheat, as excessive heat can damage the ribbon cable or other components. Hold the heat source about 6-8 inches away and move it in a circular motion to evenly distribute the heat. Apply heat for about 30-60 seconds, then test the glue’s pliability.
- Plastic Spudger or Pry Tool: Non-metallic tools to prevent scratches and damage. If heat and alcohol are insufficient, use mechanical techniques with care: Gently insert the spudger under the edge of the ribbon cable and slowly work it back and forth to lift the cable. Avoid using metal tools as they can scratch or damage the components.
- Tweezers: For precise handling. Use tweezers to gently pull on once the adhesive bond has weakened. Take your time to gently peel away the glue without applying excessive force. Periodically check the cable and the area to ensure you are not causing damage.
By following these steps, you can effectively remove stubborn ribbon cable glue without damaging the delicate components of your DJI Mini 4 Pro. This careful approach will help ensure a successful repair and maintain the integrity of your drone.
What type of glue gun and adhesive do you recommend for securing the ribbon cables and other components during reassembly?
Use mild removable adhesive to secure ribbon cables. The glue must also be resistant to vibration and water. I use regular glue for a glue gun and for some purposes B7000 glue.
Its easier to build a fpv drone from scratch that disassembling this product..
Sir, where can i get this special software to calibrate the replace front sensor
Typically, vision sensor calibration is done using DJI Assistant 2. But DJI Mini 4 Pro is not currently supported in DJI Assistant 2 (maybe support will come later), because the Mini 4 Pro will automatically calibrate through DJI Fly if the vision sensor is an error. So, a lot depends on the drone software (DJI introduces various restrictions or removes them in drone updates); perhaps the new module will be calibrated automatically, or you may have to wait for support in DJI Assistant 2.
Are there any particular signs of motherboard oxidation that I should look out for before deciding to clean or replace it?
When you assessing the motherboard of your DJI Mini 4 Pro for signs of oxidation, there are several key indicators to look out for. Oxidation typically occurs when the motherboard is exposed to moisture, which can lead to corrosion and electrical issues. Here are the specific signs to check before deciding whether to clean or replace the motherboard:
- Oxidized sections may appear greenish, white, or even rust-colored.
- Corrosion: check for any visible corrosion around the solder joints, connectors, and components. Corrosion often looks like a white, powdery residue or a crusty buildup.
- Boot Issues: If the drone fails to boot up or shows intermittent power issues, it could be a sign of underlying oxidation.
- Erratic Behavior: Unexplained crashes, sensor failures, or inconsistent performance might also indicate oxidation affecting the electrical pathways.
- Short Circuits: Look for any signs of short circuits, such as burnt marks or a smell of burnt electronics, which can be caused by corrosion bridging connections that shouldn't be connected.
@@howfixit thanks for the detailed answer! How to clean the motherboard?
Cleaning: If you observe mild oxidation or corrosion that hasn't significantly damaged the components or solder joints, cleaning with isopropyl alcohol (preferably 99% purity) and a soft brush can often restore functionality. Ensure the board is completely dry before reassembly.
In case of replacement: If the oxidation is extensive, causing significant damage to components or connections, or if cleaning doesn't resolve the issues, it may be more cost-effective and reliable to replace the motherboard. Extensive corrosion can weaken the integrity of the board and lead to recurrent issues.
Dang. I fly under the rain. I would not do that if i knew oxidation thing. 😢
🙏
can you send me the link for front arm shaft please? Also where i can get those tools?
much appreciated
Hi, all the links I provided in the description below the video.
thanks for the help!
Very helpful video and i have ordered some of the tools and I front arm shaft to fix myself
Hi. How to calibrate newly purchased top sensors for DJI mini 4 pro? thanks for the help.
Try the automatic calibration available in the DJI Fly app. If this doesn't work, you'll need to wait for Mini 4 Pro support in the DJI Assistant 2 software.
@@howfixit Where is the application that was developed? I OWN RC2. There is only IMU calibration, compass, gimbal...
Is calibration also required after replacing the sensor ribbon?
Vision systems may need to be calibrated after replacement. A prompt will appear in DJI Fly, then tap the prompt and calibration will be performed automatically.
If auto calibration fails, you'll need third-party software.
Have you already made the replacement? What error do you have, if any?
probably not needed if you are only changing the ribbon cable
Or insted of all of this u can contact the dji customer service wich will tell u te send the drone back and they replace it by a brand new for around 50 dollars.
Many people live in countries that don't have DJI service, and yes - it will cost much more than $50
Muito mais !! @@howfixit
I live in Brazil and a drone like this costs around 2 thousand dollars here (R$ 10,000) we don't have support from DJI here and if we take it anywhere they won't know how to work with this type of machine and it will damage it or in the worst case scenario stealing drone parts, here in my region there are few properly qualified professionals in this area and their services are extremely expensive
What about calibrations?
Some modules can be calibrated using the DJI Fly app or DJI Assistant 2, while others can be calibrated using dedicated third-party software.
@@howfixit Third-party software is not easily accessible. I personally used to calibrate the Dji mini 3 pro.
Yes, it is sometimes difficult to access, but we DIYers have no other way because DJI chooses the limited repair policy like Apple.