Unplug the USB host shield and manually use jumper wires to connect the power, ground, MISO, MOSI and SCK. Connect SS to an unused pin and modify your code (or library) to use the new pin.
Unplug the USB host shield and manually use jumper wires to connect the power, ground, MISO, MOSI and SCK. Connect SS to an unused pin and modify your code (or library) to use the new pin.