Service redirect over USB Type-C

A method, comprising:

• at a device, wherein the device is configured to be tested by a tester, and the device includes a universal serial bus (USB) receptacle having a first configuration channel pin, a second configuration channel pin, and one or more signal pins:
• determining whether a first resistor coupled to the first configuration channel pin is coupled to ground or a reference voltage;
• determining whether a second resistor coupled to the second configuration channel pin is coupled to ground or the reference voltage;
• in accordance with a determination that both the first resistor and the second resistor are coupled to ground, decoupling a first terminal of the second resistor from ground and coupling the first terminal of the second resistor to the reference voltage, thereby establishing a hybrid termination configuration in which the first and second configuration channel pins are coupled to separate ones of ground and the reference voltage via a respective resistor;
• in accordance with a determination that both the first resistor and the second resistor are coupled to the reference voltage, decoupling a first terminal of the first resistor from the reference voltage and coupling the first terminal of the first resistor to ground, thereby establishing the hybrid termination configuration for the first and second configuration pins;
• determining whether a USB cable is attached to the USB receptacle to connect the device to the tester and checking attachment of the USB cable continuously or periodically;
• in accordance with a determination that the USB cable is attached to the USB receptacle to connect the device to the tester and a determination that the hybrid termination configuration is enabled for the first and second configuration pins, establishing a communication channel between the device and the tester via the one or more signal pins of the USB receptacle and enabling a service redirect mode that allows the tester to interact with the device;
• and
• in accordance with a determination of a cable detach of the USB cable, exiting by the device the service redirect mode, thereby disabling the device from interacting with the tester.

A device, comprising:

• a universal serial bus (USB) receptacle having a first configuration channel pin, a second configuration channel pin, and one or more signal pins, wherein the device is configured to be tested by a tester;
• a processor;
• and
• a non-transitory computer readable storage medium comprising instructions for:
• determining whether a first resistor coupled to the first configuration channel pin is coupled to ground or a reference voltage;
• determining whether a second resistor coupled to the second configuration channel pin is coupled to ground or the reference voltage;
• in accordance with a determination that both the first resistor and the second resistor are coupled to ground, decoupling a first terminal of the second resistor from ground and coupling the first terminal of the second resistor to the reference voltage, thereby establishing a hybrid termination configuration in which the first and second configuration channel pins are coupled to separate ones of ground and the reference voltage via a respective resistor;
• in accordance with a determination that both the first resistor and the second resistor are coupled to the reference voltage, decoupling the first terminal of the second resistor from the reference voltage and coupling the first terminal of the second resistor to ground, thereby establishing the hybrid termination configuration for the first and second configuration pins;
• determining whether a USB cable is attached to the USB receptacle to connect the device to the tester and checking attachment of the USB cable continuously or periodically;
• in accordance with a determination that the USB cable is attached to the USB receptacle to connect the device to the tester and a determination that the hybrid termination configuration is enabled for the first and second configuration pins, establishing a communication channel between the device and the tester via the one or more signal pins of the USB receptacle and enabling a service redirect mode that allows the tester to interact with the device;
• and
• in accordance with a determination of a cable detach of the USB cable, exiting by the device the service redirect mode, thereby disabling the device from interacting with the tester.