Icom IC-705
firmware v1.27
Icom · Released May 20, 2022 · First seen Sep 7, 2026
Source:
icomjapan.com
v1.27 is not the latest firmware for the Icom IC-705: the current version is v1.40 (August 21, 2025). Go to v1.40
In short — summary by updatemystuff.com
Enables forced all reset by key combination when connecting power if power button fails.
- Forced reset using RIT/ΔTX and XFC keys held while connecting external power
Written from Icom's release notes, which are printed in full below.
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What's in this update
Changes from Version 1.26
Improved to enable forcing an All Reset by connecting an external power source (*) while holding down [RIT/ΔTX] and [XFC], even if you cannot turn ON/OFF the transceiver by using the [POWER] key.
- First, disconnect any external power supply, battery pack, and USB cable, and then reconnect any one of them.
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