Based on the naming pattern, this appears to be a for a device where "CM69" is the model number or internal codename. The .bin extension is commonly used for binary firmware images, bootloader updates, or system patches.
If you are looking to "create a feature" (i.e., modify or update) using this file, here is how it is typically used and what it controls: Core Functions of the File Cm69-update.bin
Changing the zxdzlogo.png or similar image referenced by the update bin. Based on the naming pattern, this appears to