Press the SNOOZE / LIGHT button while the clock is in standard mode to cycle through the available brightness levels: High, Medium, Low, and Off.
Disclaimer: This guide is for the Color Screen Calendar Model 2159t (Hardware Revision C). If your device has a grey bezel, you likely have the 2158s model, which uses different buttons. Color Screen Calendar Model 2159t Instructions
Press MODE until "AL" appears. Hold MODE for 3+ seconds until the alarm time flashes. Adjust with the UP/DOWN buttons and press MODE to save. Press the SNOOZE / LIGHT button while the
The alarm minute digits will flash. Use or DOWN to choose the minutes. Press ALARM to confirm. Press MODE until "AL" appears
Press and hold the Power button (right side, top) for 5 seconds. The color screen will illuminate with the brand logo. The boot sequence takes approximately 45 seconds.