Weird Issue - CP-7975g boots into diagnostic firmware
This is my first post to this forum. I have a very strange issue for which I can't find an answer anywhere online, so I thought I'd take a stab at posting it here.
I am endeavoring to put together a phone system for my church (for which they have almost no budget) and have recently acquired a job lot of Cisco CP-7975g phones fairly inexpensively.
One of these phones boots into what appears to be a version of diagnostic firmware (Ver.:13.02.00.63)
See Attached Picture
Key presses on the numeric pad are recognized and are reported on the display. Pressing the # key results in ‘Enter option’ and ‘Invalid Option’ being displayed on the screen.
I have tried performing a factory reset of the phone (hold # at boot until line buttons flash in sequence then enter ‘123456789*0#’) but the phone does not respond to the # key being held at boot and continues to start up in the diagnostic firmware.
Could anybody throw me a bone on how to fix this problem?
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