Check again that the module is in the bootloader mode (by applying 3.3V to B pad, or typing “Update” in the CLI), and make sure that you’re attaching the USB-UART cable (Tx & Rx lines) to the port that is distinguished by a star * on it. Refer to this article for more details.
Troubleshooting & FAQs
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- General
- Power & Hardware
- I’m powering through a USB port and my array is behaving strangely or constantly rebooting
- I don’t see the LED indicator blinking when I power my module
- I reversed power connection on my module.. Is it dead?
- I applied more than 3.5V on my module.. Is it dead?
- Can I power my module from a single-cell Lipo (Lithium) battery?
- I’m using H04R1x (2 x coin cells in parallel) to power my module and it’s acting strangely
- How do I reset my module MCU without removing power?
- Updating Firmware
- How do I know if my module has already a firmware on it?
- How do I find out which firmware version is installed on my module?
- Where can I find latest firmware?
- Where can I find older firmware releases?
- Firmware update failed / my module has a broken firmware. Is it dead?
- ST Flash Loader software cannot connect with the factory bootloader
- How do I update firmware on a module if bootloader programming port is not accessible?
- Can I update firmware on the entire array at once?
- Remote update is not working
- How can I update module firmware by booting into ST factory bootloader?
- Command Line Interface (CLI)
- Does using the CLI affect normal module operation and inter-array communication?
- Q: Can I open more than one CLI in my module and my array?
- Can I use the CLI at a lower baud rate?
- Can I delete a letter I entered in the CLI?
- If I create a new module group, where can I see group name and members?
- If I named a module, where can I see its alias name?
- Are CLI commands case-sensitive?
- How do I change the order of execution for command snippets?
- Array Exploration & Topology
- Array Communication
- What criteria is used in routing messages?
- How do I execute a CLI command on a remote module?
- How do I execute an API on a remote module?
- Can I send a message to a group of non-adjacent modules?
- What happens if I send a message with a wrong message code?
- What happens if I send a message with wrong parameters?
- How do I reduce message collisions?
- What is the appropriate delay between two consecutive messages?
- Writing Code
- Cloning Firmware
- Compiling Firmware
- Debugging Firmware
- The debugger is not able to connect to my module
- Sometimes the debugger does not stop on my break points
- I can’t add a variable to “watch” window
- My code is stuck in the for loop inside vApplicationStackOverflowHook() function
- My code is stuck in the for loop inside vApplicationMallocFailedHook() function
- How can I find current stack usage for a particular task?
- Home
- Docs
- Private: Troubleshooting ...
- Updating Firmware
- ST Flash Loader software cannot connect with the factory bootloader
