Lowrance HDS-9 Gen2 Touch Installation Manual - Page 30

Touch Screen Calibration In some cases it may be required to re-calibrate the touch screen due to electrical influences on the device from it's installation environment. The following steps should be completed to apply calibration: 1. Turn the unit off 2. Press and hold the Waypoint key, then turn the unit on 3. Hold the Waypoint key during power on, until the calibration utility screen comes up 4. Touch crosshair shown on screen to perform nine points calibration 5. After successful calibration the unit will return to normal application screen Software upgrades The latest software for this unit will be available for download from the Lowrance web site; www.lowrance.com An SD card and SD reader/writer are required for this. Detailed instructions for how to install the software are provided on the update web page. 28 | Software setup | HDS Gen2 Touch Installation Manual