Are you sure your firmware was not this one dated July 2013 not 2014 and was 52.003.23.000 and not 52.005.23.00
| SPAR | 52.003.23.000 | 2.50.02.23 | 1.00.33 | 4.02.01.03 | Pulled | 08/13 |
https://www.xrxgsn.com/admin/user/spar_release.ihtml
The SPAR Release code is:
WC33xxSpar
Installation instructions are included.