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Downgrading Base firmware to 25.73.0.27 from 25.73.0.40
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complex1 Offline
3CX Adv. Cert. Engineer
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Posts: 1,530
Joined: Jan 2014
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Post: #2
RE: Downgrading Base firmware to 25.73.0.27 from 25.73.0.40
Hi,

Please download the firmware from the link and extract it to your desktop.
https://www.go-ccs.nl/downloads/25.73.0.27.zip

Login to your Base and press the Reset to Factory button. ( Phone > Upgrade )
Wait until the Base is up-and-running.
Login and go to Phone > Upgrade and search the file (25.73.0.27) you extracted from the zip file, then click the Upgrade button.
The new firmware will be flashed into the Base and wait until it is ready.
Login to your Base and factory reset it again. Please don’t forget.
Finally check if the Base is running the new firmware.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
07-15-2016 11:33 PM
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RE: Downgrading Base firmware to 25.73.0.27 from 25.73.0.40 - complex1 - 07-15-2016 11:33 PM

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