Keyboard Module Replacement Questions

Hey guys,

I’ve had my OP for almost 3 years now, and over the past couple months a few buttons have started intermittently working. The buttons are shift, foreword arrow, and tape 1, three pretty damn important ones! So my questions are for those who have bought a new keyboard module, did it come with every single key/ button? And how easy was the installation process?

Sorry if this has been discussed before, I’ve tried searching but couldn’t find a definitive answer.