The "y107" designation is commonly associated with older or set-top boxes (often from brands like Star Track or similar OEM manufacturers using ALI chipsets). The "cstm" suffix typically indicates a "custom" or modified version of the original firmware, often used to unlock features or update encryption keys available at that time.
: A .bin or .abs image file meant to be flashed via an RS-232 serial cable or a USB port (if the device supported it).
If you are writing about this for a tech blog or archive project, consider these angles:
