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Full Version: Downgrade Firmware!! Help!!!
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Hello There,

I am using T58A at work. When I order this phone I decided not to order the camera, but a couple days later I decided to get the camera to test.. so i did... I got the camera.. and I wasnt able to use it from the phone, so I checked on yealink site for the latest firmware for that phone... so I ended downloading this one : 【2018-11-2】T58-58.83.0.15.rom .... which is not MS Teams.. so I am trying to get the MS Teams rom back (T58A(T56A,T55A)-58.15.0.38.rom) but is not letting me, because it is a downgrade .. Is there a way to perform this firmware downgrade?

Any help is appreciated!
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