Asus ZenFone 4 gets January 2019 Google security patch update with charging stability optimization. The update comes as build number 15.0610.1901.22 and available for ZenFone 4 ZE554KL variant. The update will improves the security on the device, so all users are recommended to update their device to software version 15.0610.1901.22.
Last month, Asus rolled out a software update for ZenFone 4 (build number 15.0610.1811.18) with Dual SIM Dual Standby function and some critical bug fixes. The update fixed the occasional restart when using fingerprint to wake up the phone, as well as internet connecting issue on some networks.
Recently, Asus upgraded ZenFone 5 (Z) to Android 9 Pie with several new features and UI enhancements. Once updated, you can enjoy all the Android Pie goodies including the Adaptive Battery, Adaptive Brightness, App Slice, App Actions, Advanced AutoFill, DNS over TLS, and many more.
The January 2019 security update for ZenFone 4 ZE554KL_ WW_15.0610.1901.22 includes system charging stability optimization, upgraded Google Mobile Services, general bug fixes and other optimizations.
How to Update ZenFone 4 ZE554KL to Latest Version Manually
The incremental OTA update is now live. If you have not received the update notification, check it manually by heading to Settings > About Device > System update.
If you prefer to install the new update (build WW_15.0610.1901.22) manually, download it from Asus website [HERE] and then follow our guide.
IMPORTANT: Before start, backup important data and ensure more than 50% battery charge on the phone.
To remind you, Asus recently updated its newly launched budget ZenFone Max M2 to new version. The update brings Selfie camera EIS, camera performance improvements, Fingerprint registration improvements, December 2018 security patch. If you have not upgraded, check this guide.
