I have put together one method of getting unlimited hotspot data unthrottled and it works on all carriers that I have used.
In this video I have used Cricket Wireless as an example which is an MVNO owned by AT&T and works very similarly to AT&T
This has been tested on Verizon and T-Mobile also with success.
Just change your APN settings according to your Carrier
This has worked on my Android and iPhones and even on my Nighthawk M5 and Nighthawk m6
how to change TTL on iNet OpenWRT router
• UNLIMITED 5G/LTE WI-FI...