Yealink Forums

Full Version: CP960 upgrade to teams n downgrade to yealink original failed
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
Hi, trying to recover cp960 after downgrade failed, recovery mode using CP960 bin rom rms give me "Update failed(-1)"
(07-02-2020 05:52 AM)and12345 Wrote: [ -> ]Hi, trying to recover cp960 after downgrade failed, recovery mode using CP960 bin rom rms give me "Update failed(-1)"

make sure when using the USB method to add the files straight to the flashdrive. Do not put into a folder. When plugging in, as soon as you see see initializing press the home button. After a few seconds the USB recovery should start on it's own.
Reference URL's