---
title: "[WIZ750SR] I can not firmware upload (Configuration tool)"
url: "https://maker.wiznet.io/forum/12782"
markdown_url: "https://maker.wiznet.io/forum/12782/md"
type: "Forum topic"
category: "General"
author: "Edward"
created: "2018-03-05T03:38:39+09:00"
last_activity: "2018-05-27T23:56:12+09:00"
language: "en"
views: 1538
replies: 2
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# [WIZ750SR] I can not firmware upload (Configuration tool)

## Question

Asked by Edward on 2018-03-05 in General.

The code structure of WIZ750SR is divided into Boot code and App code.
The boot code has a minimum initialization setting value, and the actual operation code is implemented in the App code.
**Therefore, the firmware that can be downloaded with the configuration tool is the App code.**

Please refer to the list below for how to download the App code in the configuration tool.
Please also note that you will need to download the firmware from the configuration tool in the search state.

1. Check if WIZ750SR power is ON.

2. In the Configuration tool, verify that the product is displayed after Search (Broadcast).

3. Click the “Upload” icon at the top of the configuration tool
   [![Config_app_download0](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/3/330c78a9f91b47e18b91526e9142795ed28d6acf.png) Config_app_download0658×586 36.6 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/3/330c78a9f91b47e18b91526e9142795ed28d6acf.png)

4. Select the firmware to download (App.bin)
   [![Config_app_download1](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/d/d92de951c59dbef6153e63b03fa817141801a1a9.png) Config_app_download1944×532 20.6 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/d/d92de951c59dbef6153e63b03fa817141801a1a9.png)

5. When the firmware download is complete, a message will be displayed as shown below.
   [![Config_app_download2](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/8/859269f5231d3f88e05307ad0eb80fc40fc9f6e0.png) Config_app_download2658×586 42.7 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/8/859269f5231d3f88e05307ad0eb80fc40fc9f6e0.png)

If you can not download the firmware, please try the following method.

1. Make sure that the IP address of the PC is the same as the IP address of the product.
   a.To check the IP address of the PC, you can set it by accessing the Control Panel - Network and Sharing Center - Changing the adapter settings - Local Area Connection - Properties - Internet Protocol Version 4 (TCP / IPv4).
   [![Config_app_download3](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/0/0a54ee0a4c8c3dc0cb8020692b694c0cc878b108.png) Config_app_download3462×521 12.3 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/0/0a54ee0a4c8c3dc0cb8020692b694c0cc878b108.png)

2. User must! The PC’s IP address and the product’s IP address must match the same bandwidth. ex) PC (192.168.11.100), product (192.168.11.2)
   a. Power off and then on again to search and download the firmware.
   b. Change the IP address, Gateway, and try again. ex) 192.168.11.50

## Replies

### Reply 1 by attari, 2018-05-26

how to make hard reset on Wiz750SR ?

### Reply 2 by Edward, 2018-05-27 (in reply to reply 1)

WIZ750SR already has Hardware reset pin to 5pin of J1.
Please refer to below link.
<https://wizwiki.net/wiki/doku.php?id=products:wiz750sr:datasheet:start#wiz750sr_connector_specification>

---

Source: https://maker.wiznet.io/forum/12782