With some interfaces, it's not possible to upgrade the firmware from 1.07 to 1.08. To do this, you must start in 'bootloader mode'.
-power off your interface
-create a shortcut on p2-p3-p4-GND ports
-power on your interface
-start tools.exe
-update the firmware
-power off your interface
-remove the shortcut
-power on your interface
-start tools.exe
-update the firmware again
Here is a diagram showing the ports you must connect.

- bootloader mode smaller.jpg (41.7 KiB) Viewed 472 times
If you don't have the correct cables for this, a quick solution is to use a ball of foil. As long as the 2 pins on the right are not connected, your interface will successfully start in bootloader mode.

- bootloader_foil.png (831.07 KiB) Viewed 472 times