---
title: "Recommissioning a decommissioned router - icom OS Routers"
slug: "recommissioning-a-decommissioned-router-en"
updated: 2025-01-08T08:04:24Z
published: 2025-01-08T08:04:24Z
canonical: "docs.insys-icom.com/recommissioning-a-decommissioned-router-en"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.insys-icom.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Recommissioning a decommissioned router - icom OS Routers

INSYS routers with icom OS provide a function for safe decommissioning.

This deletes all data such as firmware, profiles or containers securely from the device. This ensures that after a router has been used in a safety-critical application, all data on it will be deleted in such a way that the data cannot be restored even with the appropriate effort and tools if the router is physically accessed.

Only a rudimentary rescue system will remain on the router, but this will enable the router to be resurrected.

## Situation

A router has been decommissioned using the **Safe decommissioning** function. This router is to be recommissioned.

![cg en m3 resurrection 01](https://docs.insys-icom.de/assets/cg_en_m3_resurrection_01.png)

## Solution

### Prerequisites

- You will need an Ethernet connection between your configuration computer and the Ethernet port **ETH1** of the router.
- Your configuration computer has a fix IP address in the network **192.168.1.0/24**.
- You will need a current firmware file from the [Release Notes page](https://icom-os.releasenotes) (this must be a **full packet** and not an **incremental packet**).

![cg m3 resurrection](https://docs.insys-icom.de/assets/cg_m3_resurrection.png)

### Limitations

- Routers of the **MIRO** or **MIROdul** series require a special firmware file; please contact our [Technical Support](https://www.insys-icom.com/en/support/technical-support/).
- Routers that are equipped with an older rescue system (delivered with a firmware version prior to 4.6) must first be recommissioned with firmware version 5.0 before they can be updated to the latest firmware.

### Procedure

1. Enter the IP address [http://192.168.1.1](http://192.168.1.1) into the address line of your browser. ![cg en m3 resurrection 02](https://docs.insys-icom.de/assets/cg_en_m3_resurrection_02.png)
2. Click on *Browse…​*, select the firmware file and click on *Submit Query*. ![cg en m3 resurrection 03](https://docs.insys-icom.de/assets/cg_en_m3_resurrection_03.png)
3. Check the content of the uploaded firmware file and click on *Install*. ![cg en m3 resurrection 04](https://docs.insys-icom.de/assets/cg_en_m3_resurrection_04.png)
4. Click on *Reboot*.

The firmware will be uploaded to the router and the router will return to its default settings after the restart.

> [!NOTE]
> Good to know!
> 
> You have the option of uploading additional packages, such as containers, configurations or licenses, to the router together with the firmware in the last step.

## Result testing

1. Open the user interface of the router: https://insys.icom

## Troubleshooting

- The browser’s rudimentary rescue system is only accessible via the address [**http://192.168.1.1**](http://192.168.1.1); if your browser prevents a connection via **HTTP**, the browser function or extension that only allows connections via **HTTPS** must be disabled.

Standard IP address: https://192.168.1.1; login depending on configuration; default for earlier firmware versions: *User name*: **insys**, *Password*: **icom**