Icom IC-905
firmware v1.13
Icom · Released Jan 25, 2024 · First seen Sep 7, 2026
Source:
icomjapan.com
v1.13 is not the latest firmware for the Icom IC-905: the current version is v1.20 (October 2, 2025). Go to v1.20
In short — summary by updatemystuff.com
Improved communication resilience with automatic recovery during RF unit interruptions.
- Momentary communication interruptions now auto-recover without error display
- Fixed RF firmware update issue when unit not detected at startup
Written from Icom's release notes, which are printed in full below.
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What's in this update
Changes from Version 1.12
-Improved that the communication between the controller and the RF unit was momentarily interrupted and automatically recovered during the operation, "A communication error occurred between the controller and the RF unit." dialog not displayed.
- If the firmware is updated after the "The RF unit is not detected." dialog is displayed at startup, the firmware of the RF unit is not updated. After restarting, the " RF CPU firmware is wrong version. Retry updating the firmware." dialog will appear.
In that case, update the firmware from the state that the RF unit is correctly recognized (the state the "The RF unit is not detected." dialog is not displayed).
If the "The RF unit is not detected" dialog is repeatedly displayed after restarting, disconnect the CX-10G and update the firmware.
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Create account & watchChanged since v1.12
- Changes from Version 1.12
- Improved that the communication between the controller and the RF unit was momentarily interrupted and automatically recovered during the operation, "A communication error occurred between the controller and the RF unit." dialog not displayed.