Note before update
Should use different firmwares according to the chips, comparison as below.
For chip STM8
If using chip STM8L051F3, the FW version should be [20200827] V000100 or below.
Now should update to [20211229] V000101.
Preparation
All tools required as below.
Name of tool | Type | Picture |
|---|---|---|
ST-LINK | Hardware | 
|
USB cable (please buy locally, it is commonly used) | Hardware | 
|
PC or laptop | Hardware | / |
ST Visual Programmer (for chip STM8L051F3) | PC software | 
|
Latest firmware V000101 for 821/M4 | Firmware |
Instruction of update
For chip STM32
If using chip STM32G030F6, the FW version should be [20211208] V000200 or below.
Now should update to [20211229] V000201.
Preparation
All tools required as below.
Name of tool | Type | Picture |
|---|---|---|
ST-LINK | Hardware |
|
USB cable (please buy locally, it is commonly used) | Hardware | 
|
PC or laptop | Hardware | / |
STM32 Cube Programmer (for chip STM32G030F6) | PC software | 
|
Latest firmware V000101 for 821/M4 | Firmware |
Instruction of update
Settings of software STM32CubeProgrammer
Double-click to run the well-installed software STM32CubeProgrammer
Open the firmware of video door phone device, this firmware ends with “.hex”.
Make connection “Device - ST-LINK - PC”
Use a 6pin cable to connect ST-LINK with the board of device
Also use a Mini USB cable to link the ST-LINK to the PC, then the LED of ST-LINK should be ALWAYS ON (if the LED is flashing, please do the reconnection, or reopen the STM32 software)
Download the firmware to the device
Note：Unplug the 6pin cable from the device directly, after download completed.
The Firmwares above are standard version.
Please contact the sales staff for customized Version.