Table of Contents
Phantom 3 and Inspire 1 Modification Overview
This guide explains how to modify Phantom 3 and Inspire 1 flight controller parameters running ANY firmware version.
NOTE: THIS IS FOR PRO USERS, YOU HAVE TO KNOW WHAT YOU ARE DOING! I'M NOT RESPONSIBLE FOR ANYTHING.
These instructions apply to any firmware version as of January 2018; the keys were found, we are good to go on all versions.
How to videos
The following how to video shows the process end to end. Watch this before doing any of this!
Toolset
Make sure to review this GitHub with more info: https://github.com/o-gs/dji-firmware-tools
- Download dji_xv4_fwcon.py
- Download dji_flyc_param_ed.py
- Download Python 3
- Download your Firmware of choice
Put the PY files and the firmware bin file in same folder, such as C:\P3
Install Python 3, reboot if required. Make sure to SET PATH for Python. If you don't know what this means, google it.
Detailed Usage instructions for the two Python Tools, dji_xv4_fwcon and dji_flyc_param_ed
Detailed Steps
1. Extract the flight controller Module
- Put “dji_flyc_param_ed.py”, “ddji_xv4_fwcon.py” and “P3X_FW_V01.07.0060.bin” into one folder such as C:\p3
- Open a command prompt on Windows
Start->Run->cmd
- Navigate to this folder C:\P3
cd\p3 PRESS ENTER
- Type into cmd (Note: Replace “P3X_FW_V01.07.0060.bin” below with the fw version you are using.
dji_xv4_fwcon.py -vv -x -p P3X_FW_V01.07.0060.bin PRESS ENTER
- If you receive the following message:
ModuleNotFoundError: No module named 'Crypto'
- That means there is a module missing in the Python 3.6.x installation.
- If you do not get the error skip down to “The firmware will extract…” below.
- To get the needed Module open a cmd prompt as administrator.
- (win 10) Take the cursor to the bottom left corner and right-click to open the WinX menu.
- Select “Command Prompt (Admin)” to open an elevated command prompt.
- Type into cmd
python -m pip install pycryptodome PRESS ENTER
- Wait for the process to finish download and installing pycryptodome module
- Now repeat this step
- Type into cmd
dji_xv4_fwcon.py -vv -x -p P3X_FW_V01.07.0060.bin PRESS ENTER
- The firmware will extract and various modules will show in that folder different modules. The important module is P3X_FW_V01.07.0060_m0306.bin
- Type into cmd
dji_flyc_param_ed.py -vv -x -m P3X_FW_V01.07.0060_m0306.bin PRESS ENTER
This will extract the firmware and the flight controller firmware module.
2. Edit the flight controller Module
- Open the flyc_param_infos file in Notepad, Notepad++ or your favorite text editor
- Locate the parameter you want to find, change the value noted in the table below.
Example g_config.advanced_function.height_limit_enabled_0 Change the MinValue and MaxValue = 2
- Be careful to only edit the parameters you are familliar with!
- Save the file
3. Recompile the 306 flight controller module
- Type into cmd
dji_flyc_param_ed.py -vv -u -m P3X_FW_V01.07.0060_m0306.bin
- After this command runs, it will compile the parameters back into the P3X_FW_V01.07.0060_m0306.bin file.
- Now, you need to rename the file before loading on the aircraft. Rename it to “PMCAPPFw3.bin” for p3 and “INMCAPPFw1.bin” for inspire 1 (no quotes).
4. Install the modded file on your Phantom
- To install the file on your aircraft, copy the PMCAPPFw3.bin or INMCAPPFw1.bin file to a formatted micro-SD card
- Insert SD card into aircraft, power on. If the firmware update does not start, you can force it by holding the button on the side of the VPS.
- The file will be flashed and the edited parameters will be applied.
- The flashing progress takes about 5-10 minutes.
- After flashing is complete the file on SD card “ PMCAPPFw3.bin ” will be automatically renamed to “ PMCAPPFw3_updated.bin”. Delete this fie, then fly your aircraft
- NOTE: The changes work in the simulator as well, test there first!
Important Parameters
These are the important parameters you may want to modify to change the flight characteristics. These may change a tad from p3s to p3a to p3p to Inpsire. The proposed below are from p3a 1.7.
Important Parameter Descriptions
I removed the g_config from the prefix to make the table fit better :)
| Parameter Name | Description |
|---|---|
| advanced_function.height_limit_enabled_0 | Removes height limit |
| control.horiz_vel_atti_range_0 | GPS Tilt angle makes faster |
| control.atti_range_0 | ATTI Max tilt angle |
| control.atti_limit_0 | ATTI tilt angle |
| control.vert_up_vel_0 | Ascent Velocity Rate (Up) |
| control.vert_down_vel_0 | Descent Velocity Rate (Down) |
| airport_limit_cfg.cfg_search_radius_0 | NFZ search radius, lower is less enforcement |
| airport_limit_cfg.cfg_disable_airport_fly_limit_0 | Disable NFZ |
| airport_limit_cfg.cfg_limit_data_0 | NFZ map data value |
| airport_limit_cfg.cfg_enable[FLY_LIMIT_TYPE_SPECIAL]_0 | NFZ Type 2 Removal (GeoZone) |
| flying_limit.auto_landing_enabled_0 | No landing at 65k feet from HP |
| voltage.level_1_protect_type_0 | Battery level 1 function (warn, led) |
| voltage.level_2_protect_type_0 | Battery level 1 function (warn, led, land) |
| voltage2.level_1_voltage_0 | Battery level 1 % |
| voltage2.level_1_function_0 | Battery level 1 function (warn, land) |
| voltage2.level_2_voltage_0 | Battery level 2 % |
| voltage2.level_2_function_0 | Battery level 1 function (warn, land) |
| voltage2.user_set_smart_bat_0 | Battery type (DJI vs non-DJI) |
| voltage2.level2_smart_battert_land_0 | SmartRTH battery landing % |
| advanced_function.driver_license_limit_enable_0 | DJI Driver License Pilot |
| advanced_function.viechle_license_limit_enable_0 | DJI Driver License Aircraft |
Parameter Values to Change
I removed the g_config from the prefix to make the table fit better :)
Last edit: digdat0 07/21/201. adding license param. use the tilt and vert up/down as guidelines.
Height Limit Removal
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| advanced_function.height_limit_enabled_0 | 1 | 2 | 1 | 2 | 2 | 2 |
| flying_limit.max_height_0 | 20 | 500 | 120 | 10000 | 10000 | 10000 |
GPS Mode Speed Change
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| control.horiz_vel_atti_range_0 | 10 | 60 | 23 | 30 | 60 | 30 |
ATTI Mode Speed Change
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| control.atti_limit_0 | 10 | 60 | 30 | 50 | 60 | 50 |
| control.atti_range_0 | 10 | 60 | 30 | 50 | 60 | 50 |
Vertical Ascent/Descent
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| control.vert_up_vel_0 | 1 | 10 | 5 | 10 | 12 | 10 |
| control.vert_down_vel_0 | 1 | 10 | 3 | 8 | 10 | 8 |
NoFlyZone Removal
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| airport_limit_cfg.cfg_disable_airport_fly_limit_0 | 0 | 255 | 0 | 1 | 1 | 1 |
| airport_limit_cfg.cfg_limit_data_0 | 0 | 4294967295 | 20150910 | 20250910 | 20250910 | 20250910 |
| airport_limit_cfg.cfg_search_radius_0 | 65535 | 50000 | 0 | 1 | 1 | 1 |
| airport_limit_cfg.cfg_enable[FLY_LIMIT_TYPE_SPECIAL]_0 | 0 | 1 | 0 | 1 | 1 | 1 |
Disable distance limit landing
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| flying_limit.auto_landing_enabled_0 | 0 | 1 | 0 | 1 | 1 | 1 |
Disable smart battery functions / auto landings at low battery and high altitude
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| voltage.level_1_protect_type_0 | 0 | 1 | 0 | 0 | 0 | 0 |
| voltage.level_2_protect_type_0 | 0 | 2 | 2 | 0 | 0 | 0 |
| voltage2.level_1_voltage_0 | 10 | 100 | 30 | 0 | 0 | 0 |
| voltage2.level_1_function_0 | 0 | 10 | 0 | 0 | 0 | 0 |
| voltage2.level_2_voltage_0 | 10 | 100 | 10 | 0 | 0 | 0 |
| voltage2.level_2_function_0 | 0 | 10 | 1 | 0 | 0 | 0 |
| voltage2.user_set_smart_bat_0 | 0 | 10 | 2 | 0 | 0 | 0 |
| voltage2.level2_smart_battert_land_0 | 0 | 100 | 10 | 0 | 0 | 0 |
Disable DJI's driver license enforcement
| Parameter Name | Stock minValue | Stock MaxValue | Stock defaultValue | New MinValue | new Maxvalue | New defaultValue |
|---|---|---|---|---|---|---|
| advanced_function.driver_license_limit_enable_0 | 1 | 1 | 1 | 2 | 2 | 2 |
| advanced_function.viechle_license_limit_enable_0 | 1 | 1 | 1 | 2 | 2 | 2 |
These parameters are intended to be informational and as guidelines. You can change certain ones like speed +/- from what is posted above. Please fly safe and within the limits of the aircraft and yourself.
Finish
Once you are done editing, you can fly. I recommend compass calibration. You ca
All Parameters Lists
