4.3.7.1 USB service interface
A micro USB header provides access to the service interface. This interface is
identified, circled, in the figure below, noting that there is more than one micro USB
interface connector within the gateway.
Figure 38 Location of USB service interface connector
Important: Whilst the procedure for a factory reset of the gateway is described below
it is always recommended to first attempt to achieve that, by decommissioning a
gateway using the app.
Access USB service interface
Prerequisites for this work:
• Have available a PC with a terminal emulator, like Tera Term or PuTTY
• Connect the micro-USB cable between PC and gateway
• If not already powered, power the gateway
• Use Device Manager to confirm Ports (COM & LPT) has a device called:
o "Gadget Serial"
• For W10 a driver should already be installed for W7 it will need to be
manually installed. If the device isn’t present or has errors, use the Zadig.exe
described later.
• With the driver installed and the terminal emulator launched, connect at
115 200 baud and 8-N-1: 8 data bits, no parity and 1 stop bit. A typical
configuration is shown below:
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