There is a brand new firmware update V2 for model UR2170 (U2)
Please use this Software-Update to install the newest Firmware version for the kitchen under cabinet soundmaster UR2170 to get all updated functions. This update optimize the radio memory preset station function for DAB+ and FM radio. Problems with losing preset memory station will be solved.
You can download referring firmware and installing describtion here as ZIP-file. Unpack file and follow PDF manual for update. You need one empty USB-stick (min. 8 MB) for update procedure.