iPhone 6 Plus iOS 9.2.1 Review
Installing small updates on older phones can bring problems, but that hasn't been a major issue with the iPhone 6 Plus iOS 9.2.1 update. Even though this phone is over a year old, we are not seeing any major change in performance from iOS 9.2 to iOS 9.2.1 on the iPhone 6 Plus.
We are not seeing the black screen issue that appeared on our iPhone 6s, and overall the speed of the iPhone 6 Plus on iOS 9.2.1 is solid. There is a small difference in speed between the iPhone 6 Plus and iPhone 6s Plus with iOS 9.2.1, but this is only an issue when looking at the two devices side by side.
The iPhone 6 Plus iOS 9.2.1 update is solid with no problems connecting to AT&T LTE networks and using the personal hotspot. Bluetooth connectivity and WiFi connectivity are both solid.
Most users should install the iOS 9.2.1 update on the iPhone 6 Plus without worrying about problems.