About your devices, we have added for you. Please remove it and add it again to get the latest database. 1) Search Brand:AT&T Model: IPH8110 Step 1: Remove & Add it again, Enter your Brand Step 2: Click"Popular models" Step 3: You can find more buttons by using "Reassign the Key" Function. Kindly noted: * Please do not cover the place where the signal is emitted (IR device) * Keep line-of-sight (IR Devices) I took a video for you, hope it can help you better know U1. https://www.youtube.com/watch?v=hMSmvxwDeI4