Eden Drone Repairs

Farm Drone JIYI Retrofits & Custom Builds

Locked out of your own drone? There is a better way.

Proprietary agricultural drone systems — DJI Agras in particular — are built around a closed ecosystem. When the flight controller fails, or the firmware locks the machine out of areas it should be able to fly, or a replacement board is quoted at R60,000 with a six-week lead time, the machine becomes a liability rather than a tool.

Eden Drone Repairs offers JIYI K++ V2 retrofits for existing agricultural drone frames, new custom JIYI builds, and repair of existing JIYI-based systems — from our workshop in Heidelberg, Western Cape.

We have hands-on JIYI experience. Our first completed JIYI project was a water-damaged crop sprayer with a failed flight controller kit — stripped, rebuilt, and returned to service with a full JIYI K++ V2 system. That project confirmed what the system is capable of and what it takes to do this work correctly.

Why JIYI?

The JIYI K++ V2 is a dedicated agricultural flight controller — not a hobbyist platform adapted for farm use. It is designed specifically for spray and spread operations, and it shows in how it behaves in the field.

What it does that proprietary systems do not:

  • Triple IMU and dual barometer redundancy — if one sensor degrades mid-flight in a dusty or humid environment, the system continues on the backup without pilot intervention
  • Break-point memory — if the drone returns to base for a battery swap or refill, it resumes the mission from exactly where it stopped
  • Integrated low-tank failsafe — the system responds to tank level, not just battery level
  • AB Point and full perimeter autonomous mission modes built into the app — no laptop, no ground station software
  • No geo-fencing restrictions tied to a manufacturer’s cloud infrastructure

The JIYI K++ V2 is controlled via the SIYI MK15 agricultural controller — an Android-based unit with a high-brightness screen readable in direct sunlight, and physical knobs for adjusting spread rate and swath width on the fly. It is a purpose-built field tool.

Making easy work of fertilizing the wheat fields with T100!

JIYI Retrofit Service

A retrofit replaces the flight electronics of an existing agricultural drone frame with a JIYI K++ V2 system. The frame, motors, arms, and tank or spreader assembly are retained. The flight controller, ESCs (where proprietary), radio link, and spreading control logic are replaced.

Suitable candidates for retrofit:

  • DJI Agras series frames with failed or locked flight controllers
  • Other brand agricultural platforms (XAG, Tta, custom builds) where the original electronics are no longer supported or repairable
  • Crash-damaged agricultural drones where the frame is structurally sound but the electronics are beyond repair

What the retrofit includes:

  • Full disassembly and assessment of the existing frame and drivetrain
  • JIYI K++ V2 installation with GPS, PMU, and radar integration
  • SIYI MK15 controller configuration for JIYI app operation
  • JIYI K-Box integration for pump or spreader motor control
  • IMU calibration, compass calibration, and failsafe configuration
  • Bench test and functional flight validation

What it does not include:

Frame structural repair, motor replacement, or tank/spreader mechanical work — these are quoted separately if required. We will advise during assessment.

Note on DJI Agras batteries: DJI smart battery packs communicate via a proprietary data protocol. A JIYI retrofit requires either an adapter solution or a transition to standard high-voltage LiPo packs. We will assess compatibility with your specific battery model and advise before proceeding.

Repair of Existing JIYI Systems

If you already have a JIYI K++ V2-based drone — whether built by us or by another integrator — we provide fault diagnosis and repair.

Common JIYI system faults we address:

  • K++ V2 flight controller board failure
  • GPS module faults and compass interference issues
  • SIYI MK15 / MK32 link faults and binding failures
  • Radar module faults (obstacle avoidance and terrain following)
  • K-Box pump and spreader control failures
  • Firmware update complications and sensor recalibration after component replacement

Cover Crop Application with DJI Agras

Custom JIYI Builds

For customers who need a new agricultural drone rather than a retrofit, we build custom JIYI-based platforms to specification. Our standard 30-litre hexacopter build uses the JIYI K++ V2 flight controller, Hobbywing X-series power systems, and the SIYI MK15 agricultural controller.

Custom builds are quoted individually based on intended application — liquid spray, granular spread, or dual-mode — and on the specific frame and power system specification required.

If you are comparing a custom build against the cost of a new DJI Agras, speak to us first. A JIYI-based build is repairable with parts you can stock locally. A crash does not mean a proprietary repair queue and a machine grounded for a season.

Getting Started

For retrofit enquiries, the most useful information to send us upfront is:

  • The make and model of your existing drone
  • The nature of the fault or reason for the retrofit (crash damage, controller failure, firmware lock, or other)
  • Your location — for large agricultural platforms, we will advise on freight and crating before you ship

Use the contact form below to send an enquiry. We will respond with an assessment framework and, where possible, a fixed-price indication before you commit to sending the machine.

    Farm Drone Retrofit Intake Form

    Client Details





    Drone Identification





    Reported Technical Problems *

    Delivery Method

    IMPORTANT: All drones must be delivered to our Heidelberg workshop by prior booking. No on-site inspections or call-outs are performed.

    Mandatory Legal Declarations *

    I confirm that:
    • I am the lawful owner or authorized representative of this UAV platform.
    • All batteries delivered are declared and safe for handling.
    • The drone is free of hazardous chemicals, pesticides, or biological contaminants unless declared in writing.
    • I understand that agricultural UAV platforms operate in corrosive environments and hidden damage may only become visible during inspection.
    • I authorize Eden Drone Repairs to perform diagnostic procedures including powered testing, firmware analysis, motor testing, ESC testing, and calibration procedures as required.
    • I accept that diagnostic or calibration test flights, where required, are conducted at my own operational risk.
    • I understand that repair quotations are estimates and additional faults may be discovered once disassembly begins.
    • I accept that liability is strictly limited to the value of the service performed and excludes crop loss, downtime loss, consequential damages, or third-party claims.
    • I understand that payment for inspection is immediately and repair costs is due with acceptance.

    Legacy / Older UAV Platform Disclaimer *

    I acknowledge that older UAV platforms (5+ years or discontinued models) may not have available parts, firmware support, or manufacturer documentation. I accept that repair may not be economically viable and diagnostic fees remain payable regardless of outcome.

    Terms & Conditions *

    I confirm that I have read and accept the Eden Drone Repairs Terms & Conditions in full, including limitations of liability and risk allocation.

    View Terms & Conditions

    Related: Agricultural Drone Repair Services — battery recelling, pump repairs, and frame work for existing agricultural platforms.

    💬 WhatsApp Now