Asus starts rolling out the FOTA update with build number 71.50.395.57 for ZenFone 4 Selfie Pro (ZD 552KL). As usual, the firmware update rollout is incremental, so it will take few hours or even few days to reach the OTA on all devices. Check for the update by going to Settings > System > System updates to check for the update.
What is new in this update? You can also download the firmware ZD552KL_ WW_V71.50.395.57 and update your ZenFone 4 Selfie Pro manually. ASUS has made available full firmware for download, which is useful if you cannot install the OTA.
How to Install Software Update Manually Asus ZenFone
Installing software update manually on ZenFone 4 Selfie Pro is not a complicated process. All you need to download the correct firmware file for your device’s SKU version and flash it manually. Suggest to backup data before starting the software update. First, download latest firmware update zip file for ZD552KL from Asus website here. After downloading the update zip file, follow this installation guide. (Source)
