Updating ISM 43362 WiFi module firmware on B-L475E-IOT01A board - SOS!

Hello

I see same problem as you.

I tested with latest STM32CubeProgrammer version 2.11 like you.

Maybe there's a new way to manage UART connections in newer versions of STM32CubeProgrammer that changed delays and timeouts for UART connections.

I found a workaround: once the Inventek firmware is erased (and generates timeout error) I unplugged and replugged the board to remove power. Then I run the last STM32_Programmer_CLI command independently on CMD prompt.

If you already run the script, the STM32 pass-through firmware is already flashed and the Inventek firmware is already erased (even if there is a timeout error at the end).

Try to unplug the B-L475E-IOT01 from USB, re-connect it to USB, then run only the last command in the update_Wifi.bat batch file (to update Inventek firmware):

(in a DOS CMD prompt, in the directory where ISM43362_M3G_L44_SPI_C3.5.2.7.STM.bin is located)

"C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin\STM32_Programmer_CLI.exe" -c port=COM5 br=115200 p=even db=8 sb=1 fc=OFF -d ./ISM43362_M3G_L44_SPI_C3.5.2.7.STM.bin 0x08000000 -v

note: in the example I use port=COM5 as in your screenshot.

it takes a long time to write and verify, but in the end it works in my case.

it seems the identification of STM32F2xx instead of STM32L4 doesn't cause problem.