An update boot  (aka TE USB FX2 firmware update) is a multi-step boot operation:

• follow the same procedure desrcibed in  update boot and use Open_Fut (gen 2) instead of DEWESoft.
• TE USB FX2 module with the USB EEPROM enabled (when TE USB FX2 module is powered on) should be already inserted at this point.
• A)  TE USB FX2 module is seen under Device Driver as a Trenz Electronic Device. In this case, you should start a Recovery boot procedure to download Generation 2 firmware.
• B)  TE USB FX2 module is seen under Device Driver as a DEWESoft Device.
• Open the USB Firmware Upgrade Tool Open_FUT (gen 2): double click ofut.py.
• Press the  "..." button (it means for "Select *.iic file or enter file path”) at left of "Program USB" button corresponding to the firmware file pathname selection
• Select a suitable .iic firmware upload file. You can download the firmware availbale at Trenz Electronic GitHub.
• Press the “Program USB: write IIC EEPROM” button if you want the *.iic file to be written into the large EEPROM of the EZ-USB FX2LP USB FX2 microcontroller.
• When the progress bar reaches 100%, the following log text message notifies the successful completion of the USB upgrade procedure.

NOTE: the procedeure are the same of this link but with Dewesoft pid/vid (current_dw.iic).