I tried to update the firmware for the NINA W102 BLE module on my custom Nano IoT 33. I had a clone of this device designed and assembled, but with a few extra ICs, and I left out the Crypto chip and the IMU.
I followed the instructions here: https://www.arduino.cc/en/Tutorial/WiFiNINA-FirmwareUpdater (WifiNina 1.5.0 library installed - the latest). Every time I hit "Update Firmware" (see screenshot), I get an error message, "Programmer Not Responding. Make sure that FirmwareUpdater sketch is loaded on the board." even though I have successfully loaded the sketch. (Also by the way, I have the latest version of Arduino IDE (1.8.13)).
To dig deeper, I uploaded the sketch via a debugger, and found that it is stuck in this loop of the FirmwareUpdater sketch:
if (!ESP32BootROM.begin(921600)) {
Serial.println("Unable to communicate with ESP32 boot ROM!");
while (1);
}
The closest available solution on the internet to this problem is here Firmware Updater - Nano 33 IOT - Networking, Protocols, and Devices - Arduino Forum and it did not work for me (still receive the same error, and I think that solution is outdated anyway).
It looks like it's having trouble connecting with the BLE chip and I can't figure out whether it means I've designed the PCB wrong/the manufacturer made a mistake during assembly (unlikely because I triple checked the Nano IoT 33's circuit schematic, but it's still possible) OR I'm doing something wrong software-wise. Can someone please advise? And please keep in mind I'm an Arduino newbie (but long term software developer)!
