Hi, i'm practicing at Cisco System Peru and i tried to change the logo from the ip phones 7905G and 7912G that are registered in a ccm 4.1(3) but after i did the procedure that some pdfs says the phones become inoperable, they doesn't load the firmware, actually the display is empty when i connect them to a power inline switch also both leds ligths remain ignited.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.