ZFPH-RH850 | Reading Module Cable for Renault Clio 5, Mégane 4 (Phase 2), Captur, Sandero – Compatible with ZED-FULL PLUS IEA

The ZFPH-RH850 is a specialized cable-module designed to read MCU data (including the PIN code) from HFM/UCH units on recent Renault and Dacia vehicles.
When used with the ZED-FULL PLUS IEA, it allows technicians to retrieve the PIN code required for key creation or addition when no original key is available.

This module is intended for professional automotive locksmiths and electronic specialists. The operation requires removing the HFM/UCH unit from the vehicle and soldering the wires of the ZFPH-RH850 cable to the specified points on the circuit board to extract the PIN code.

Compatible Vehicles (examples)

• Renault Clio V — 2020 and newer

• Renault Mégane 4 (Phase 2) — 2021 and newer

• Renault Captur — 2020 and newer

• Dacia Sandero — 2021 and newer

• Other Renault/Dacia 2021+ models: Arkana, Espace, Scenic, Zoe (depending on version and ECU type)

Compatibility depends on the specific electronics generation — always check the HFM/UCH reference before operation.

Key Features

• Direct PIN code reading from HFM/UCH MCU via soldered connection

• Enables “lost key” applications: add or program card keys and blade keys after PIN retrieval

• Designed for full compatibility with the ZED-FULL PLUS IEA (appropriate MCU mode required)

• Avoids lengthy or costly ECU replacement procedures when PIN reading is possible

Package Contents

• 1 × ZFPH-RH850 cable/module (Zed-Full RH850 MCU connector)

• 1 × Quick start guide (soldering points & safety notes)

Technical Instructions (summary)

1. Power off the vehicle and disconnect the battery.

2. Remove the HFM/UCH unit following the manufacturer’s instructions.

3. Identify the soldering points on the board (as shown in the guide).

4. Solder the ZFPH-RH850 wires to the corresponding pads.

5. Connect the cable to the ZED-FULL PLUS and launch the MCU/PIN reading process.

6. Once the PIN code is retrieved, proceed with key programming or addition through ZED-FULL PLUS.

7. Disconnect, restore the unit to original condition, and reinstall it in the vehicle.

Safety & Recommendations

• For qualified technicians only — improper soldering may cause permanent damage.

• Always disconnect the battery before intervention.

• Verify the exact reference of the HFM/UCH unit before soldering; not all variants are compatible.

• Keyfirst / IEA accept no liability for damage caused by improper handling.

• We recommend proper training or service support before attempting the procedure.

• Always back up EEPROM data before writing.

Workshop Advantages

• Saves time during lost key procedures

• Reduces costs linked to ECU replacement

• Compatible with the latest Renault/Dacia models (2020+)

• Can be used on-site or in workshop when paired with the ZED-FULL PLUS

Technical Data

• Product reference: ZFPH-RH850

• Keyfirst reference: ZED-A011

• Purpose: PIN reading on HFM/UCH MCU (soldered connection)

• Compatibility: Renault / Dacia (Clio V, Mégane 4 PH2, Captur, Sandero, etc. — 2020/2021+)

• Software compatibility: Requires ZED-FULL PLUS IEA

• Package: Cable + user guide

Conclusion & Ordering

The ZFPH-RH850 is the ideal tool for professionals who need to recover PIN codes from recent Renault/Dacia HFM or UCH units, enabling full “lost key” services without ECU replacement.
For technical support, training, or purchasing, please contact Keyfirst, the official distributor.

Legal Notice and Copyright

The brands mentioned, such as Renault™, Clio 5™, Mégane 4™, Captur™, or Dacia™, are the exclusive property of their respective owners. They are referenced solely to indicate product compatibility with items distributed by KEYFIRST SAS.

KEYFIRST SAS is not affiliated, approved, or endorsed by any of these manufacturers. The products offered are adaptable aftermarket solutions, without manufacturer logos, developed in full compliance with European intellectual property and anti-counterfeiting laws.

No ownership, license, or commercial relationship is claimed over the brands mentioned.