---
title: "WIZ105SR problem after wrong HW setting"
url: "https://maker.wiznet.io/forum/13353"
markdown_url: "https://maker.wiznet.io/forum/13353/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "Janek"
created: "2019-06-06T13:14:09+09:00"
last_activity: "2019-06-06T13:14:09+09:00"
language: "en"
views: 505
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WIZ105SR problem after wrong HW setting

## Question

Asked by Janek on 2019-06-06 in Serial-to-Ethernet & ConfigTool.

Hi,
I have some quantity of modules, that finished they functionality after unsuccessful
HW programming. The Hardware Factory Reset is not effective.
After power On or Reset the message from COM port is “IIM Ver : STD”.
It is not possible to see the module from Configuration Tool.
So, Is it possible to solve this problem?
Thank You!
Janek.
Riga,Latvia

---

Source: https://maker.wiznet.io/forum/13353