Hello,
We were trying to upgrade the firmware but looks like there is a SSL certificate issue. Here’s the terminal log:
Scanning for Serial Ports
Please wait for the scan to complete
Serial Port Options:
[1]: /dev/cu.Bluetooth-Incoming-Port
[2]: /dev/cu.SLAB_USBtoUART
Please enter the number of the desired Serial Port above: 2
Firmware Choices:
[1]: WiFi AWS Gateway
[2]: WiFi Azure Gateway
[3]: WiFi MQTT Gateway
[4]: WiFi Google IoT Gateway
[5]: Mega Modem
[6]: Cellular MQTT Gateway
Please enter the number of the desired firmware: 3
https://ncd-esp32.s3.amazonaws.com/WiFi_MQTT/firmware.bin
Traceback (most recent call last):
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 1317, in do_open
h.request(req.get_method(), req.selector, req.data, headers,
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py”, line 1230, in request
self._send_request(method, url, body, headers, encode_chunked)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py”, line 1276, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py”, line 1225, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py”, line 1004, in _send_output
self.send(msg)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py”, line 944, in send
self.connect()
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py”, line 1399, in connect
self.sock = self._context.wrap_socket(self.sock,
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ssl.py”, line 500, in wrap_socket
return self.sslsocket_class._create(
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ssl.py”, line 1040, in _create
self.do_handshake()
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ssl.py”, line 1309, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File “ncd_flasher.py”, line 179, in
firmware_file = urllib.request.urlretrieve(str(firmware.get(‘firmware’)), ‘./firmware.bin’)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 247, in urlretrieve
with contextlib.closing(urlopen(url, data)) as fp:
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 222, in urlopen
return opener.open(url, data, timeout)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 525, in open
response = self._open(req, data)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 542, in _open
result = self._call_chain(self.handle_open, protocol, protocol +
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 502, in _call_chain
result = func(*args)
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 1360, in https_open
return self.do_open(http.client.HTTPSConnection, req,
File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py”, line 1320, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)>