Upgrading a M1 nighthawk to a M6 Pro, But the system wont let me. Please Advise!
I have a ATT Unlimited Plus Grandfather plan. Under that Plan, AT&T explicitly granted it 5g and 5g+ per their press release HERE. I have two M1 Nighthawks on my account both on the grandfathered plan and with unlimited data. Recently ATT has released their Nighthawk M6 Pro. However, I am unable to upgrade my existing hotspot lines to the new M6 Pro. They will allow me to upgrade the device to a top-of-the-line iPhone 13 or any other flagship phone but not an in-place upgrade from one Nighthawk to the next.
Please note that the latest AT&T plans do not have unlimited data for hotspots and are thoroughly unattractive to me due to data overages that would happen after the hard limit they place on the hotspots (Makes no sense to have multi gigabit-speed if you use it up in under 5 minutes).
Steps I have taken:
1. I called ATT Wireless to attempt to do an over-the-phone upgrade with an agent. They were unsuccessful and stated that they cannot upgrade the device due to it being part of a multi-line account. I have never heard of this restriction as I had no issue upgrading phones on the line that was available to upgrade.
2. Attempted to use the online portal and was unable to select the M6 or M6pro from the available upgrades (but they will let me upgrade to a spark)
3. Attempted a in-store upgrade but due to them lacking the hotspot (it's new) they advised me to call. See point 1.