(FOR PARTS) Nest Thermostat E + Heat Link, Powers On but Locked (TD023). Comes boxed with all the original accessories. Purchased on eBay because I thought I could figure out how to make it work, but I can't. Turns on fine. The screen works, device charges properly, and enters setup mode. However, it's still linked to the previous owner's Nest account and shows a TD023 error during setup so it can't currently be connected or used as-is. Sold strictly as spares or repair with no returns. Ideal for someone who knows what they're doing or wants the Heat Link for a project. UK buyers only, PayPal only.