Firmware Download

Download the old version

Download Type Firmware
Model name IC-R8600
Version Version 1.20 USA version
Update Aug.30.2017
Major changes

If your serial number starts from "02xxxxxx", you can install this firmware for the update.


  • To match the RS-R8600 Remote control software, the following items have been changed and added.
    The LAN AF SQL's default setting has been changed from OFF to ON.
    CI-V commands have been changed and added. A revised CI-V Reference Guide will be posted on the Icom website in the near future.
  • The Scan Resume function has been changed as follows.
    Scan Resume ON/OFF buttons have been added.
    "HOLD" has been added as a setting item for the Scan Pause time.
    The Scan Resume time can be set.
  • German and French keyboard layouts have been added to keyboard language selection.
  • Fixed other minor bugs.


  • To use the RS-R8600, update the IC-R8600 firmware to version 1.20 or later.

To update the firmware

  • An SD card or an SDHC card is required.
  • Format the card in the IC-R8600 before using it for the update. (First, save any data that is on the card, if necessary.)
  • Unzip and save the downloaded firmware file in "IC-R8600" folder that is on the card.
  • Save the receiver's data onto a separate card before doing the update. It is possible that your data could get lost or corrupted during the update.
  • Thoroughly read Section 7 (USING AN SD CARD) and Section 13 (UPDATING THE FIRMWARE) of the "FULL MANUAL" before starting the update.
  • Never turn OFF the receiver power during the update.
  • The firmware will be updated to the following versions.
    MAIN CPU: 1.20
    FRONT CPU: 1.00
    DSP Program: 1.02
    DSP Data: 1.00
    FPGA: 1.00
    DV DSP: 1.00
  • Also download the CS-R8600 1.20 updater from here.
File Size 5.85MB
File Type zip
Manual manual download page

Regarding this Download Service.

When using this download service, the implementation, use and/or results of use are the sole responsibility of you using this download service and the equipment. You shall comply with applicable laws and regulatory requirements in the use of this download service and in the operation of the equipment.

Firmware is important data for the basic system control of your equipment. An interruption during downloading or a malfunction may cause a failure in the data re-writing, and your equipment may stop functioning normally. If such a failure of the firmware re-writing results in your equipment not functioning normally, Icom Inc. and its affiliates expressly denies and is free from any and all responsibility arising from the result of damage from such an event.

You agree not to hold Icom Inc. and its affiliates responsible for any damage to your equipment operation or loss of data, or unauthorized use of the equipment, whether intentional or not, as a result of use this download service.