USB Connection92Manager button. Make sure the entries highlighted in blue in the followingscreenshot are there.Windows Device Manager: USB driver componentsUpdating the SoftwareUse a USB data cable to update the software for your OpenPhone 27.Carry out the following steps to update the software for your OpenPhone 27:1. Install the USB driver (see USB Driver Installation starting on page 91) and connectthe OpenPhone 27 with your PC.2. Start the programme for updating the software of your OpenPhone 27.3. Follow the instructions of the PC programme for updating the software.After the programme has determined the configuration, your telephone isswitched off.4. Switch the device on again by keeping the arrow key F pressed and then inaddition, press the R key R. Now the update of your telephone’s software iscarried out.