OnePlus 5 and 5T received OxygenOS 5.1 Android 8.1 (Oreo) stable update last month, and soon the company rolled out OxygenOS 5.1.1 for the phones with an Hot Fix to fix ringtone issue for phone and notifications. Now it has rolled out OxygenOS 5.1.2 update that brings several new features for Gallery, fixes for WiFi, microphone issues when using AKG earphones and finally double-tap to wake-up for the lock screen. Check out the complete changelog below.