Before attempting a fix, you must know the exact string required by your specific model. Lenovo BIOS fields are case-sensitive and often require specific suffixes. Check the Label
In simple terms: Your Lenovo software cannot recognize which Lenovo computer it is running on. Without a valid product name, tools like System Update do not know which drivers or BIOS versions to offer you.
: For some Gen 2 models, you must include an "i" at the end (e.g., "ThinkPad T14 Gen 2i") for the system to accept it.