Download ZenFone 4 Pro (ZS551KL) official Firmware

Name: ZenFone 4 Pro (ZS551KL)
Model: ZS551KL
Version: JP-15.0410.1807.83
Size: 2.11 GBytes
Downloads: 1610

Change Log:

Improvement Item:
1.Update security patch
2.Improve system stability
3.Update APN list

Steps of Update:
1.Check software version of your device**
2.Download device software and Update SOP (From “Manual” Item
3.Only apply to same SKU update, Example: WW->WW, CN->CN, JP>JP.
4.Software update cannot transfer the software SKU and downgrade the software version.
5.Wrong SKU may cause update failure, please update the same SKU version only.
*How to know the device model?
Path: Settings->About-> Model number
Example: ASUS_Z00UD
**How to know the device software version?
Path: Settings->About-> software information->Build number
***System upgrade may cause part of data missing, please backup your important data before system

Notic: Please keep in mind that, you must flash - firmware at your own risk and also full responsible with you.

Please be informed that Asus-firmware.com only share the official firmware WITHOUT ANY modifications. All Roms here are for home or personal use only.