If your DayBand device is displaying letters and numbers backwards, follow these steps to resolve the issue:

1. Restart Your Device: A simple restart can fix many display issues. Turn off your DayBand by using the power button, and wait a few moments before turning it back on. This may reset the display settings and correct the visual issue - learn more.

2. Check Display Settings: Navigate to the settings menu on your DayBand. Look for display settings that might have been altered. Ensure that all settings are set to standard configurations, as some devices have options for accessibility features that might change the display orientation - learn more.

3. Firmware Update: Ensure your DayBand software is up to date. Connect your device to a Wi-Fi network and check for software updates. Manufacturers often release patches to fix bugs, including display issues - learn more.

4. Factory Reset: If the previous steps do not resolve the issue, consider performing a factory reset as a last resort. This will erase all your settings and data, so ensure that you back up any important information before proceeding. Instructions for performing a factory reset can usually be found in the user manual or the settings menu of the device - learn more.

5. Contact Support: If the problem persists even after a factory reset, it may be a hardware issue. Contact DayBand customer support for assistance or consider bringing the device to a service center - learn more.

These steps should help you resolve the issue of your DayBand displaying letters and numbers backwards. If you have any specific questions about the steps, please feel free to ask.