Firmware Download

Download the old version

Download Type Firmware
Model name IC-7850/IC-7851
Version Version 1.41
Update 2024/05/15
Major changes

Changes from Version 1.40

  1. [Added linkage function with IC-PW2]
  2. ・Supported for the Linked manual tuning with IC-PW2.
  3. ・Supported for the IC-PW2 Dual Connection Mode.
  4. ・Supported for the IC-PW2 Transmission Interlock control.
  6. [Any other changes]
  7. ・Improved the All Reset operation.
  8. When the [POWER] key cannot turn ON or OFF the transceiver, holding down the [F-IMP] and [MW] keys and turning ON with the [I/O] key on the Rear panel instead of the [POWER] key will perform an All Reset.

For details, please refer to  "Information IC-7850/IC-7851 Version 1.41." 

  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 4.02MB
File Type zip
Manual manual download page

Firmware Update Information Ver.1.41

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.