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how can i erase the firmware of cisco 7912 phone ?

greensubmarine2009
Level 1
Level 1

‎04-16-2015 06:40 AM - edited ‎03-17-2019 02:41 AM

how can i erase the firmware of cisco 7912 phone ? the firmware is crashed in this 7912 phone , i want it to download another copy from CUCM8.5 .

 

the way i did on 7911phone doesn't work on 7912.

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Brandon Pierce
Level 4
Level 4

‎04-16-2015 06:50 AM

https://supportforums.cisco.com/discussion/10797901/reset-factory-default-ip-phone-7912

 

You can try that procedure but I'm not sure how far that factory reset goes on those phones.  I know the 7940/60 series you can blow out everything except the CNU which would do exactly what you are looking for.

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