How to update to the new firmware: The above download file is integrated with the 20UR updater and the firmware. When the file is activated, the guidance message will appear on a PC screen. Simply follow the instruction to complete the update. 「NOTE」
Please refrain from any other operations on a PC during the procedure of a firmware update, the process may end incomplete. In such case, please restart the procedure from the beginning.

To use the firmware Ver.1.19, PJP-25UR Controller must be updated to Ver.1.23. By downloading and running the above-mentioned updater, "the firmware and PJP-25UR Controller" can be updated simultaneously. If PJP-25UR Controller is Ver.1.21 or older, it is not possible to update the firmware to Ver.1.19 or later versions.

CAUTION
Upgrading or downgrading the firmware of this revision will result in resetting the initial value for the amount of echo cancelling. For details, see Changes to Specifications.
A phone plug used for MIC/LINE INPUT must be TS phone type.