To download the software package officially, you must purchase a subscription through the Honda ServiceExpress portal . Honda has largely transitioned from the standard HDS to the i-HDS (Interim Honda Diagnostic System) suite, which is the current dealer-level software for diagnostics and ECU reprogramming. Official Purchase and Download Steps
Subscriptions are available for European models through the Honda Europe TechInfo portal . honda diagnostic system -hds- software package download
Update control modules and rewrite ECU firmware via the integrated J2534 application. Immobilizer Support: Honda Diagnostic System (HDS) To download the software