stahkaoja Wed, 01/30/2008 - 22:06
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If you have totally lost connectivity with 7921G, this is the procedure:

Press ... and speakerphone buttons (located on the left and right sides of the phone) together and then power-up the phone. The phone says "Starting recovery mode. Checking firmware."

Now, you must have the USB-cable (CP-CAB-USB-7921G) and the proper drivers installed to your computer. Then you must change your computers IP-address to, for example 192.168.1.101/255.255.255.0

Use your web-browser to connect to 192.168.1.100 and from there, you can upload a new firmware (.tar file) to the phone. That process takes several minutes. After that, the phone is "factory resetted".


Hope this helps,


Sami


migilles Thu, 01/31/2008 - 12:55
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  • Cisco Employee,

That is the method to recover the firmware and not for factory default.


For fadctory default, the method is to enter **2 when in the Settings > Phone Settings menu.

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