Download
WIZ750SR Firmware Update Guide
Before updating the WIZ750SR Series firmware, understand that it consists of two parts: Boot and Application (App).
This structure allows the S2E (Serial to Ethernet) module to easily update firmware over the network using the Configuration Tool.
⚠️ Check the compatibility table below
Make sure your module’s Boot and App versions are compatible before updating.
If the versions do not match, the firmware cannot be updated via the Configuration Tool.
In this case, use the UART2 port and the ISP Tool to upload the All (Boot+App merge) binary file.
👉 For detailed upload instructions,
please refer to the ISP Tool Guide link below.
⚙️ Compatibility
| Boot | App | Status |
|---|---|---|
| V1.2 | V1.2.x ~ V1.3.x | ✅ Working |
| V1.3 | V1.3.x ~ V1.4.5 | ✅ Working |
| V1.2 | V1.3.x | ❌ Not Working |
| V1.2 | V1.4.x | ❌ Not Working |
| V1.3 | V1.2.x | ❌ Not Working |
💡 Existing V1.2 Boot users must use the ISP Tool (UART2) to update the firmware with All (boot+app) before upgrading to the V1.3.x firmware.
🔹 WIZ750SR Series
(WIZ750SR-TTL / 232 / 485 / W7500P-S2E)
| Boot | Type | Version(Download) |
|---|---|---|
| V1.2 | App | v1.2.9 |
| All(Boot+App merge) | v1.2.9 incl. Boot | |
| V1.3 | App | v1.3.3 |
| All(Boot+App merge) | v1.3.3 incl. Boot | |
| V1.3 | App | v1.4.5 |
🔹 WIZ750SR-100 Series
(WIZ750SR-100 / 105 / 110 / W7500-S2E)
| Boot | Type | Version(Download) |
|---|---|---|
| V1.2 | App | v1.2.9 |
| All(Boot+App merge) | v1.2.9 incl. Boot | |
| V1.3 | App | v1.3.3 |
| All(Boot+App merge) | v1.3.3 incl. Boot | |
| V1.3 | App | v1.4.5 |
🔹 WIZ752SR Series
(WIZ752SR-120 / 125)
| Type | Version(Download) |
|---|---|
| App | v2.1.0 |
| All(Boot+App merge) | v2.1.0 incl. Boot |
🧠 Source
W7500(P) ISP Tool
The screenshot of ISP tool is shown as below.
For details, please refer the following tables.
| Name | version | Download Link | Remarks |
|---|---|---|---|
| ISP tool | latest version | ISP tool download | Window |
| ISP tool | latest version | W7500 ISP Program Download in Linux | Linux |
| User's manual | V1.0 | W7500x_ISPmanual_V100E | Window |
| ISP Protocol Manual | V1.0 | W7500x_ISP_Protocol | Common |
| Python ISP module | V1.0 | W7500x_ISP_Python_module | Common |
WIZ VSP
- WIZ VSP (WIZnet Virtual Serial COM port) is the software for those users who want to use the existing application programs based on serial communication.
- WIZnet Virtual Serial Port: It can be used to change the device that is connected to the PC through the existing serial interface to control by the remote Ethernet network.
- If you agree with the End User License Agreement for WIZVSP, you will be able to download the program and get a registration key. When registering the product with license agreement, the MAC address of the product in use and the Email address of the contact person are required.
Requirement
- The latest version supports up to Windows 10, and we recommend using Windows 7 or higher.
- Environments under Windows 7 support only the old version, if necessary, contact the technical support team.
- Developer Forum
- Channel Talk: https://www.wiznet.io --> Click the button on bottom right
- The current WIZVSP driver does not officially support the Windows 11 environment, so operation cannot be guaranteed and technical support is difficult.
- To use in the Windows 11 environment, you must manually enable the port using the 'Scan for hardware changes' menu in Device Manager.
Go to WIZVSP end user license agreement page:
http://wizvsp.wiznet.io