Icom IC-7700 firmware v1.04

Icom · Released Dec 11, 2008 · First seen Sep 7, 2026

Source: icomjapan.com

v1.04 is not the latest firmware for the Icom IC-7700: the current version is v2.20 (July 20, 2018). Go to v2.20

In short — summary by updatemystuff.com

DSP Unit software performance improvements

  • DSP performance optimized

Written from Icom's release notes, which are printed in full below.

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What's in this update

Major points of update from Ver.1.03 to Ver.1.04

Improvements in the software performance for the DSP UN​IT.

Please save the transceiver data content to an USB memory before starting the firmware update.

Never cut off power supply while updating firmware.

Before starting the download, please read through " Section 16(UPDATING THE FIRMWARE) ​" of the IC-7700's instruction manual.

If you want to update the firmware via LAN, please also download this Firmware update utility; 7700FirmUtl_v100.zip(225KB) .

updatemystuff.com never hosts firmware files — always download from the official source.

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Changed since v1.03

  • Major points of update from Ver.1.03 to Ver.1.04
  • Improvements in the software performance for the DSP UNIT.

Other versions for this product

See the full firmware history for the IC-7700