Nowadays we see on several devices the inclusion of dark themes in the interface, fortunately Asus implemented in the new devices of its line, but what about the "old" ones?
About the system update from Zenfone 4 (ZE554KL) to Android 9. It would be the last major update of this device, it came natively running Android 7 and had only one update for Android 8, the update for Android 9 would keep the owners of this device are happy with the brand, knowing that it would no longer have a major update due to planned obsolescence.
It is not impossible to launch an update for Android 9 dear Asus friends, you just have to be willing to do it. I still hope for this update.
ASUS_Z01KD
OPR1.170623.032.WW_Phone-15.0610.1909.39-0
