Hi Lavron,
Thank you for posting in the community! I'm sorry to hear that you're having inconveniences finding the entry key code of your Nest Learning Thermostat 2nd Gen. I'd be happy to help!
To find the entry key on your Nest Learning Thermostat 2nd generation, look under the QR code on the back of the display. Alternatively, you can go to Settings on your Nest thermostat, select "Nest app," and then look for the entry key or QR code option.
For more detailed instructions, you can refer to this article: Add your Nest thermostat to the Nest app.
Let me know how it goes.
Best regards,
Jenniffer
