Firmware Updates / Software Downloads

Communications Receiver

Model name IC-R8600
Download Type Firmware
Version Version 1.10 USA version
Update 2017/07/07

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


  • Added a Set mode item "Fast Unmute (NXDN)", to have the ability to unmute while receiving an NXDN signal encrypted with an unmatched key code.
  • Fixed other minor bugs.

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: 1.10
    FRONT CPU: 1.00
    DSP Program: 1.02
    DSP Data: 1.00
    FPGA: 1.00
    DV DSP: 1.00
  • Also download the CS-R8600 1.10 updater from here.
File Type zip
File Size 5.83MB
Manual IC-R8600

Regarding this Download Service.

When using this download service, the implementation, use and/or results of use are the sole responsibility of the person making the download.

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. expressly denies and is free from any and all responsibility arising from the result of damage from such an event.

I fully understand the above, and agree not to hold Icom Inc. responsible for any damage to my equipment operation or loss of data as a result of this download.