Main Firmware for U1 Version Revision History 113-13801-061 [ 2016.10.10 ] Modified for better support of the LCD with ILI9325 controller. No function change. 113-13801-060 [ 2016.01.05 ] Auto-center trigger level to the middle of signal amplitude when trigger level is focused and OK button is held down for 2 seconds. This is useful for … Continue reading DSO 138 Firmware