Hi Chris,
I’m sorry to hear the 4G dongle didn’t work out for you. I’ve tried reaching out a few times via text, email, and phone to offer assistance, but I understand you’ve likely been busy these past couple of weeks.
If you decide to revisit setting up the dongle for your Delta Pro Ultra, here’s a quick guide to help you get started:
Step-by-Step Setup
1. Use a data-only SIM card plan from any carrier that provides service in the U.S.
2. To access the SIM card slot, press both side buttons on the dongle and remove the cover plate.
3. Adjust the SIM card to fit the pre-cut slots as needed.
4. Insert the SIM card and slide the cover plate back into place.
5. Connect the dongle to the top-left tab of the Delta Pro Ultra inverter. This should enable 4G functionality.
Note: Some carriers require the SIM card to be activated by contacting their support team before use.
Here’s a helpful video tutorial that simplifies the process:
https://www.youtube.com/watch?v=uMekUzHpjuA
I hope this helps, and please don’t hesitate to reach out if you need further assistance. We’re always here to help!