***Please, DONOT attempt to glue this on.*** ''It wont work and will simply just make repair x10 harder''.
* There are a few things you can do before deciding to get a replacement Mobo. If you’re comfortable with soldering, you can purchase seperate keyboard connectors from anywhere like eBay. I’ve also linked a guide here to replacing a 2011 Macbook Pro Keyboard Connector: https://www.youtube.com/watch?v=FltXSUH36xQ&ab_channel=MarkShaffer. If you have no idea what you’re about todo with your device, best to leave things be or take it to a trusted repair shop with the keyboard connector part so they can solider it on for you.
* A replacement motherboard is always an option. Keep in mind, you will have to swap parts like the Fan,RAM, HDD etc. to the new one, once it has arrived.
While buying a new Macbook Pro is an option it’s best to take these steps first before declaring it fully dead and unusuable.