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 GMC-320+V5 - "WiFi Module Error" *no* MAC Address		  New Topic  Reply to Topic
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jvylasek

USA
6 Posts
Posted - 12/28/2024 :  21:15:28  Show Profile  Reply with Quote
Hello!

I have run into a "WiFi Module Error" issue after resolving my "password with an exclamation point" barrier. Details here in case it's helpful: https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=10721


I used what I learned on that journey to try using the Data Viewer terminal to send AT+CWMODE=3 as shown here to no avail: https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=9852

I also tried the AT+CWDHCP=1,1 command as shown here with the same result: https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=4442

I even did a factory reset and set everything up again from scratch, including the two fixes shown above, with the exact same results.

I just noticed I have no MAC address when I look it up on the device. How do I re-establish that?

I will keep digging, and any advice is appreciated!

Thank you!

Live Long and Prosper
Edited by - jvylasek on 12/28/2024 22:48:59
Reply #1

ZLM

1271 Posts
Posted - 01/03/2025 :  22:39:07  Show Profile  Reply with Quote
Try to remove the Wifi module and reinstall it back. That may solve the contacting problem.

To do this, you need to open the device back cover and you should ve able to see the WiFi module close to the battery.
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Reply #2

jvylasek

USA
6 Posts
Posted - 01/06/2025 :  12:25:12  Show Profile  Reply with Quote
Thank you ZLM. I tried re-seating the module to no avail.

I then left the battery out and the ESP-12F wifi module unplugged for 10 minutes then tried again.

Still no MAC address.

Is it possible the module died?

Adding some pictures to share what I am seeing.

Thank you!

Live Long and Prosper
Edited by - jvylasek on 01/06/2025 21:42:25
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Reply #3

EmfDev

2271 Posts
Posted - 01/13/2025 :  11:37:46  Show Profile  Reply with Quote
Can you try to send this using the Data Viewer -> Terminal? >. Remove the brackets when sending. It should reply

AT+CWMODE=3

OK
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Reply #4

jvylasek

USA
6 Posts
Posted - 01/13/2025 :  17:00:40  Show Profile  Reply with Quote
Thank you!

I tried that also and it did not seem to change anything. My MAC address is still blank.

Any other ideas?

Thanks!

Live Long and Prosper
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Reply #5

EmfDev

2271 Posts
Posted - 01/13/2025 :  17:37:14  Show Profile  Reply with Quote
In that case, it needs to be sent back for service. Seems the device cannot communicate with the WiFi module. You can also purchase it directly from us (special request) for $10 shipping included. This will not guarantee to fix the issue but most likely will fix it. Please email me with your order number and response so we can proceed with the RMA.
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