Firmware Download

Download the old version

Download Type Firmware
Model name IC-7850/IC-7851
Version Version 1.40
Update 2021/04/30
Major changes

Changes from Version 1.31

  1. [Spectrum scope is improved]
  2. ・A Scroll mode that can seamlessly change the displayed scope range, depending on the operating frequency, is added.
  3. ・A popup screen that displays when SPAN or EDGE is selected is added.
  4. ・The number of FIX EDGE memories is expanded to 4.
  5. ・The Reference level is independently memorized for each band.
  6. ・The  Reference  level  of  the  Center  mode  scope  screen  while  transmitting  is  fixed  at  set  level independent of the user’s selection.
  7. ・The Scope function of the RS-BA1 is improved.    
  • [Other changes]
  • ・The transceiver’s settings are now retained after updating the firmware. (not when reverting to an older version)
  • - When the firmware is downgraded to Version 1.40 from a newer version, the transceiver's setting may be initialized.
  • ・While operating in the Data mode, the Receive Tone Control is deactivated.
  • ・The default setting of the CI-V USB Port is changed to “Unlink from [REMOTE].”   

Refer to INFORMATION IC-7850/IC-7851 Version 1.40 for details.

  1. The software update for the compatible RS-BA1 can be downloaded here.
  3. To update the firmware
  4. Thoroughly read Section 10. USING AN SD CARD OR USB FLASH DRIVE and Section 17. UPDATING THE FIRMWARE of the INSTRUCTION MANUAL and follow the instructions displayed on the transceiver's LCD screen.
  5. BE SURE to make a backup copy of your data settings to an SD card/USB flash drive before updating the firmware.
File Size 4.01MB
File Type zip
Manual manual download page

Firmware Update Information Ver.1.40

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.