Complex sentence: HP had preserved the Voodoo brand with references to the "VooDoo legacy" or "VooDooDNA", the Voodoo brand was retired some time before HP's Black Friday (shopping) advertisements in November 2014.
Split into simpler sentences: HP had preserved the Voodoo brand with references to the "VooDoo legacy" or "VooDooDNA". However, the Voodoo brand was completely retired some time before HP's Black Friday (shopping) advertisements in November 2014.