To connect the GUI to the SCB and update the firmware, follow these steps:

1. Setup and launch the GUI as described in the EVM specific user's guide.
2. With the EVM plugged in, after launching the GUI, close the README.md file page to initiate the connection. If successful, "Hardware Connected" should be visible near the bottom left corner of the GUI as shown in Figure 3-2.
   Figure 3-2 Hardware Connected
   1. A green indicator with the device type and the text "DEVICE CONNECTED" should also be visible near the top left of the GUI, as shown in Figure 3-3.
      Figure 3-3 Device Connected
3. If you receive a pop up message asking you to update the firmware, do so.
   1. It is possible that this fails the first time if the SCB didn't properly connect first. In this case, just connect to the GUI following the steps below before updating the firmware.
4. If "Hardware Connected" and "DEVICE CONNECTED" do not show in the GUI, it is possible that the SCB is already in Devce Firmware Update (DFU) mode. If so, then the Program Device... button under File >> Program Device... will not be grayed out. Click the button to begin the firmware update.
   1. You may need to close another popup message or so letting you know that the GUI couldn't connect to the SCB.
   2. If the firmware fails to update, try the same connectivity steps outlined in step 5.c.
5. If the Program Device... button is grayed out, then the device is not in DFU mode. In this case, try to connect the GUI to the SCB by doing any of the following:
   1. Press the (connect) symbol in the bottom left corner.
   2. Check different hardware COM ports under Options >> Serial Port, as shown in Figure 3-4.
      Figure 3-4 Change Serial Port
   3. If neither of those work, many connectivity issues can be addressed by doing one of the following:
      1. Long-press the RESET button on the SCB with the EVM and SCB connected to each other.
         1. Refresshing the GUI can also sometimes help.
      2. Connect the SCB using a different USB port.
         1. Avoid using long cables and USB hubs.
         2. If using a desktop PC, try a USB port on the back.
   4. If the hardware still does not connect, you may need to update the firmware manually, as described in Section 3.2.3.1.
6. After the SCB has connected to the GUI, update the firmware by going to File >> Program Device..., as shown in Figure 3-5.
   Figure 3-5 Program Device
   1. If the firmware fails to update, try the same connectivity steps outlined in step 5.c.
   2. If the Firmware still fails to update, you may need to update the firmware manually, as described in Section 3.2.3.1.
7. Once the firmware has been updated, the SCB can be used with the EVM and GUI per the EVM-specific user's guide.