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Old 02-11-2013, 10:36 AM
rsnari rsnari is offline
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Default Downgrade/erase firmware 9620

How do I go about erasing the flash, or downgrading the firmware on a 9620L, or 9620C?

I have at least one phone that needs to have the incorrect software removed, and a couple that need to be downgraded.

They just ignore the files on the http server.

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Old 02-15-2013, 06:42 AM
afahmy afahmy is offline
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this would be done using the group ID feature in the IP phones station form and applying that to the upgrade file with the different firmware versions that should be applied.
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Old 12-17-2013, 12:43 PM
jlux jlux is offline
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Default How to

Can you give instructions on how to do that exactly?
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