The problem is not with anything at your end.

The EFILive V7 software was changed a while back to only allow flashing from V1 devices that are licensed as Commercial Scan and Tune. Personal Scan and Tune devices no longer support flashing. Obviously our intention was not to remove functionality from V1 Personal devices. A free upgrade to Commercial Scan and Tune is available for all V1 Personal Scan and Tune owners. To obtain the upgrade please send your FlashScan V1 serial number to me at paul@efilive.com and I will send you back the upgrade code.

Sorry for the delay and the confusion, I had forgotten that we had made that change to the software a while back.

Regards
Paul