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  • How to do a Master handset reset - M90, M80, M70, M85, M65, M25


Applicable devices:

Please be aware that this procedure erases all settings on the handset and de-registers it from the DECT chain. After the Master reset you must re-register the handset to the DECT chain.

Master reset procedure:

  1. Press the Menu key
  2. Press *7378423*
  3. select "master reset"