DJI RC Pro Enterprise Remote – Antenna & USB-C Port Repair Guide

1. USB-C Port Replacement

  • The USB-C port on the DJI RC Pro Enterprise can be replaced, but it’s a board-level microsoldering job.
  • The connector is soldered with multiple anchor points and requires exact footprint matching — generic USB-C jacks won’t always fit.
  • If the solder pads are damaged during removal, trace repair may be needed.
  • DJI does not sell the port separately, so techs usually source a matching connector or salvage one from another board.
  • Labor value: ~$120–$160. Part cost: $5–$15.
  • If you already do microsoldering, it’s fully possible, but precision is critical.

2. Power Supply Testing & Bench Charging

  • Using a DC bench supply (e.g., Nice Power) is safe as long as you set it correctly:
    • Voltage: 5.00 V
    • Current limit: 2.5 A
    • Red lead = +5 V (VBUS), Black lead = GND
  • Always connect through a USB-C breakout board (never clip directly to USB-C pins).
  • Without the battery installed, the LEDs may blink once, but the remote won’t sustain charging — the battery must be connected to behave normally.

3. Mid-Flight Shutdown Diagnosis

If the remote powers off mid-flight:

  • Battery/BMS issue → sagging voltage under load, or faulty pack shutting down.
  • Board power fault → overheating PMIC, bad MOSFET, or cracked solder joint at the connector.
  • What to check:
    • Measure pack voltage at rest (7.4–8.2 V)
    • Under load, it must stay above 6.8–7.0 V
    • Wiggle connector and check for voltage drops → loose contact
    • Swap pack if possible to confirm

4. Antenna Removal (Key Frustration Point)

  • The antennas are not easy to remove.
  • Two retention styles exist:
    1. Screw version → two tiny Phillips screws in the hinge barrel hold the antenna arm.
    2. Snap-fit version → no screws; housing tabs lock the antenna pivot barrel in place. To remove, flex the plastic cradle at the 3 o’clock and 9 o’clock tabs and push the barrel outward.
  • A slim daughterboard (antenna interface board) often blocks access. This board is not screwed in, but trapped under shell lips and foam pads. It must be lifted/slid out of its cradle to expose the hinge cavity.

5. The Breakthrough (Practical Solution)

Instead of fighting with antenna removal:

  • Swap the entire USB-C charging/antenna interface board module between remotes.
  • This bypasses the need to extract the antenna arms themselves.
  • Much faster, less risk of damaging coax or shell tabs, and worked successfully in real-world repair.

Final Takeaway

While the RC Pro Enterprise antenna assemblies can technically be removed, DJI designed them with tight snap-fit housings, hidden lips, and fragile coax runs, making it extremely difficult.

A far more practical solution for most repair cases is to swap the whole USB/antenna daughterboard module. This restores USB-C charging and antenna function without fighting the hinge barrels.

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