On this page, you will find the official link to download Asus Stock Firmware ROM (flash file) on your Computer. Firmware comes in a zip package, which contains Flash File, Flash Tool, USB Driver and How-to Flash Manual.
The Flash File will help you to Upgrade, Downgrade or re-install the
Stock Firmware (OS) on your Mobile Device. The Flash File (ROM) also
helps you to repair the Mobile device, if it is facing any Software
Issue, Bootloop Issue, IMEI Issue or Dead Issue.
Asus ZenFone Lite L1 ZA551KL S firmware
FileName:Asus_ZenFone_Lite_L1_ZA551KL_15.07.1810.28_DL_QPST.zip
File Size: 2 GB
How to Flash: Flash with QPST Tool
File Download - DOWNLOAD HERE
Improve Items:
1.Updated the APN list for operator change.
2.Updated the Google Security patch.
3.Fast Dormancy situation support by operator to work. (Singapore M1)
4.Upgraded the GMS package version
5.SD card ringtone may disappear after reboot.
6.Fix translation issues
Steps of Update:
1. Check software version of your device**
2. Only apply to same SKU update, Example: WW->WW, CN->CN, TW->TW.
3. Software update cannot transfer the software SKU and downgrade the software version.
4. 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 PadFone2
**How to know the device software version?
Path: Settings->About-> software information->Build number
Example: CHT_PadFone2-user-10.4.17.15-UpdateLauncher
*System upgrade may cause part of data missing, please buckup your important data before system upgrading.
Readme Once:
[*] Take a Backup: If you are going to flash the above Firmware on your Asus A11 Padfone Mini device, then take a backup of everything as because your personal data will be deleted after flashing the stock firmware.
1.Updated the APN list for operator change.
2.Updated the Google Security patch.
3.Fast Dormancy situation support by operator to work. (Singapore M1)
4.Upgraded the GMS package version
5.SD card ringtone may disappear after reboot.
6.Fix translation issues
Steps of Update:
1. Check software version of your device**
2. Only apply to same SKU update, Example: WW->WW, CN->CN, TW->TW.
3. Software update cannot transfer the software SKU and downgrade the software version.
4. 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 PadFone2
**How to know the device software version?
Path: Settings->About-> software information->Build number
Example: CHT_PadFone2-user-10.4.17.15-UpdateLauncher
*System upgrade may cause part of data missing, please buckup your important data before system upgrading.
Readme Once:
[*] Take a Backup: If you are going to flash the above Firmware on your Asus A11 Padfone Mini device, then take a backup of everything as because your personal data will be deleted after flashing the stock firmware.
[*]
The firmware shared on this page is officially released by the company
and helps you to recovery your device if you ever got bootloop, software
error, update error, hanging and dead issue.