I just recently bought the IFly747V2 for FSX steam edition and the FMC says Airac cycle 1506. When i go to update to the newest Airac cycle to 1702 the FMC still says Airac 1506 and wont update. Anybody have any ideas on how to fix the problem. Heres a screenshot of the FMC http://prnt.sc/e52681
Check here, they should be able to help...it's their product.