I have plan to purchase the Raspberry Pi 3G/4G<E Base HAT.
I wish to know if its possible to eliminated the USB connection between pi 4.
OT: I’ve issue with wifi range on ships(metal door).
Understood that its not legal to modified the board for external wifi antenna.
But I’m in a desperate situation where my cabin does not have porthole(window)
So its quite a distance between getting mobile signal and getting wifi to my cabin.
Any pic of how to modify the pi 3B+ or 4 with the u.fl connector will be very much appreciate.