Icom IC-705
firmware v1.26
Icom · Released Jul 9, 2021 · First seen Sep 7, 2026
Source:
icomjapan.com
v1.26 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
Preserves settings and memories on update; Spectrum scope Center mode REF level fixed
- Settings and memories preserved when updating from earlier versions
- Spectrum scope Center mode REF level reflects correctly during transmission
Written from Icom's release notes, which are printed in full below.
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What's in this update
Changes from Version 1.24
- When in the Center mode of the Spectrum scope screen, the REF level setting does not reflect the scope waveform during transmission.
- This firmware update version 1.26 has been improved, so it will not reset settings and memories.
If the firmware is updated from version 1.24 or earlier, the settings and memories are not reset.
However, if the firmware is reverted to 1.26 from a later version (after 1.26), the settings and memories may be reset.
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