New answers tagged tethering
You could use Bluetooth or USB to tether your connection to the laptop. That would allow to deactivate wifi and let the iPhone connect to cellular.
So I'm assuming you're tethering your laptop to your phone via wifi from some app? Can you just turn wifi off, then go to the tethering app and enable tethering? If wifi is off I imagine it should turn it on and switch to it's tethering mode. Also, a note: The phone should stay connected to the cellular network while wifi is on.
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