If you FlashScan device has firmware V2.04.xx or earlier, it cannot communicate with any EFILive V8 software, it must be updated to V2.05.xx or later. So you need to use the V7.5 software to upgrade it to V2.05.xx or later.

Run the V7 firmware update software: Start->All Programs->EFILive->V7.5->EFILive Firmware Programmer.
Click on the [Status] button. That should show you the current firmware version (if you firmware version is V2.04.xx or earlier).
If the firmware version is NOT V2.04.72, then click the [...] button and open the FSProg_V2_4_72.ffw file, then click the [Program] button to update your firmware to V2.04.72 then perform the internal boot block upgrade
If the firmware version is already V2.04.72. then close the EFILive Firmware Programmer program and perform the internal boot block upgrade

To perform the internal boot block upgrade:
Select the FlashScan menu options: F4 Options -> F1 Licensing -> F4 Upgrade Bootblock.

The document I pointed to in my previous post explains in detail how to perform the internal boot block upgrade and the additional steps you must perform after the boot block is upgraded. Please read it and follow the instructions carefully.

Regards
Paul