I have two other gl.iNet devices that tether perfectly fine with my phone. Moved to the Flint for better speeds. Everything is working fine except for tethering. I have not been able to successfully tether anything to the USB port. I have a Orbic Hotspot, iPhone 12 and 13 that all work great on the other gl.iNet devices. No go on the Flint. This is certainly a issue with the Flint not the phones.