Download Install ZenFone 5Z WW- Pie Update (Android 9.0)

Download/Install ZenFone 5Z WW- Firmware FOTA (Android 9.0 Pie): The official Android 9.0 Pie has now been released for Asus Zenfone 5z.  Asus is officially rolling out WW- Firmware FOTA update for the device. Here, we are providing a direct link to download ZenFone 5Z UL-Z01R-WW- Firmware FOTA update. The update will bring Android Pie as well as the latest security patch for the device.

The OTA is already available for many users. The users can get this update via OTA or over-the-air as it has already begun to roll out. Gradually, it will be made available for all Zenfone 5Z devices all over the globe. At present, it is seeding in some regions and is getting a wonderful reception. For updating your device, go to Device Settings -> System Update -> Check for Update. If the update is available, download and install it.

Asus ZenFone 5Z was the flagship device of Asus which was released in February 2018. It comes equipped with a large 6.20-inch touchscreen display with a resolution of 1080 pixels by 2246 pixels. The device is powered by octa-core (4×2.7GHz + 4×1.7GHz) Qualcomm SDM845 Snapdragon 845 (10 nm) processor coupled with 6GB of RAM and 64GB of internal storage with an expandable storage option via a microSD card up to 2 TB.

The Asus ZenFone 5Z sports a dual rear camera setup on the rear side. There is a 12-megapixel (f/1.8, 1.4-micron) primary camera and an 8-megapixel (f/2.0, 1.12-micron) secondary camera. Along with the back camera, there is an awesome  8-megapixel front camera. The Asus ZenFone 5Z houses a Non-removable Li-Ion 3300 mAh battery


We at will not be responsible for any damage that might occur to your device in case something goes wrong. So, proceed at your own risk. Make sure you are following the guide properly.


  1. This method is applicable only for ZenFone 5Z
  2. Take a full backup of data because everything will be erased in the process.
  3. Make sure that the battery has at least 60% charge to prevent accidental shut down.
  4. Make sure there is at least 2GB of free space available on your device.


How to Install ZenFone 5Z WW- Pie Update (Android 9.0)

ZenFone 5Z WW- Pie Update (Android 9.0)

  • Method 1

Step 1: First download the firmware from the download section above.

Step 2: Now move the downloaded file to transfer it to your device.

Step 3: An update notification will appear after the firmware file detected by your device.

  • Method 2

Step 1. Download the files from the download section and rename it as and transfer to your SDcard.

Step 2. Turn off your smartphone and boot into recovery mode by pressing Power + Volume Up buttons together.

Step 3. Once in the recovery mode, select the option ‘Apply update from SDcard’.

Step 4. Then browse and select file that you transferred.

It will take some time and then reboot the phone.

  • Method 3

Step 1. Enable USB Debugging mode from Settings> Developer Options. To enable Developer Options, you have to go to Settings> About Phone and tap on the Build Number 7 times continuously.

Step 2. Download ADB and Fastboot driver for your Windows or Download ADB and Fastboot driver for your Mac and install it.

Step 3. Download the Full firmware and rename it to and copy it to the ADB folder.

Step 4. Turn off your phone and boot into recovery boot by pressing Power + Volume up buttons simultaneously.

Step 5. Choose the option “Apply update from ADB’ and connect your device to your computer.

Step 6. Go inside ADB folder on your computer, press shift and right-click to open the command prompt. Type the following command –

adb devices

This should list your device and ensure it is connected.

Step 7. Type the following to flash the WW- Firmware FOTA –

adb sideload

Wait for the process to complete and then disconnect and reboot your device.

Dibyashree Sharma
Dibyashree Sharma
An NIT Rourkela Graduate in CS, Blogger, Android Geek, and a Tennis Fanatic. I have been writing about Android OS for Last 8 years.

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