Get Device Config WDM 4.5.3

Can not update a factory default unit using Package Mgr.

1. Configured a v30 with 2 ica connections and security.
2. In WDM, right clicked the configured unit and selected “Get Device Configuration”
3. Named it, used Replace.
4. In WDM, dragged new config file onto Device Mgr and selected factory default unit.
5. Admin screen appears on unit, it then reboots
6. Unit comes back online, but still has factory default settings.

Note: I upgraded unit to FR2 Hot Fix 22 (Build 581) using FTP upgrade method.

Any help would be great! Thanks RWP