Icom ID-51A PLUS2 firmware vE4

Icom · Released Jan 31, 2020 · First seen Sep 6, 2026

Source: icomjapan.com

vE4 is the latest firmware for the Icom ID-51A PLUS2, released January 31, 2020.

In short — summary by updatemystuff.com

Fixes standby beep delay when using PTT to key repeater; updates DSP firmware to 1.05

  • Standby beep no longer sounds ~2 seconds after PTT transmission to repeater
  • DSP firmware updated to version 1.05

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

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What's in this update

Changes from Release E3

Fixed the problem where the standby beep may sound approximately two seconds after receivi​ng a reply when simply pushing PTT to key up the repeater. This occurred on transceivers using Release E2 or Release E3 firmware.

To update the firmware

Thoroughly read " Firmware update instructions " and follow the instruc​tions in it.

An OPC-2350LU or OPC-2218LU is required to install the firmware update. To use the OPC-2218LU for the first time, a USB driver is required. Download the driver here .

Making a backup file of programmed contents and settings before updating the firmware is recommended.

The DSP firmware will be updated to 1.05.

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

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Changed since vE3

  • Changes from Release E3
  • Fixed the problem where the standby beep may sound approximately two seconds after receiving a reply when simply pushing PTT to key up the repeater.
  • This occurred on transceivers using Release E2 or Release E3 firmware.
  • The DSP firmware will be updated to 1.05.

Other versions for this product

See the full firmware history for the ID-51A PLUS2