Why aren't my volume and power buttons working?
I have a space gray iPhone 6 that recently just had a battery replacement done to it. I performed the replacement. The buttons worked before the battery replacement and after. They stopped working after I did a restore to iOS 12.1.3. I have tried disconnecting and reconnecting the connectors for these buttons. The home button and touch id still work. The battery works fine and in general everything else works fine.