The OTA is already available for many users and there are many who are still to get it as Asus is releasing it in different phases. If you cannot wait for it to arrive on your smartphone as an OTA, you can download the firmware and update it manually.
Disclaimer
We at rootmygalaxy.net 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.
Pre-Requirements
Downloads
Download Asus Zenfone 3 15.0410.1712.31 Full Firmware
How to Install Asus ZenFone 3 Oreo Firmware Update [WW_15.0410.1712.31]
Method 1
Step 1. Download the files from the download section and rename it as update.zip 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 update.zip file that you transferred. It will take some time and then reboot the phone.
Method 2
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 update.zip 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 – This should list your device and ensure it is connected. Step 7. Type the following to flash the OREO firmware – Wait for the process to complete and then disconnect and reboot your device.
