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Asus ROG Phone 5s ZS676KS Firmware [Stock ROM Download]

ROG Phone 5s ZS676KS Firmware

When it comes to a guide like how to flash Asus ROG Phone 5s ZS676KS firmware, your information with flashing tools is important.

However, [highlight color=”yellow”]installing the ROG Phone 5s ZS676KS Stock ROM[/highlight] can be difficult at times when you search for the internet to unbrick your device. On this page, you will find information to help you prepare for flashing the firmware.

The Benefit Of Stock Firmware:

  • Flash Stock ROM to unbrick your Asus ROG Phone 5s ZS676KS
  • Update and downgrade
  • Unroot or fix bugs on the phone
  • To solve the lag or stutter
  • By flashing Stock ROM, you can fix software issues.
  • Revert to stock to get your warranty
  • Keeps rebooting issue
  • If your phone boots straight into recovery
  • Phone boots straight into its bootloader


Asus ROG Phone 5s ZS676KS Firmware Details:

Device Name: ROG Phone 5s ZS676KS
ROM Type: Stock ROM
Gapps File: Included
Tool Supported: QFil Flash tool
Processor: Qualcomm Snapdragon 888+ 5G Processor
Android Version: Android 11
[quads id=2]
DownloadWW-18.1220.2107.106 | 18.1220.21

Instructions to Flash Asus ROG Phone 5s ZS676KS Stock ROM:

Download the Asus Flash Tool and USB Drivers on your PC. Follow the below Guide to install the firmware using your favorite method.

Method 1: Upgrade Asus Stock Firmware via Recovery:

Download the Stock Firmware file from the download link given above and move it to your device storage.

2. Now, enter the device into recovery mode.

3. Switch off your phone > Hold and Long press Power button + Volume Up and your device will boot into recovery mode.

4. Now, in the recovery menu, select the option Apply update from sd card.

5. Choose OTA firmware Example (WW-14.0400.1905.067) file which you’ve downloaded and moved earlier.

6. Wait for some time to complete the installation process.

7. Finally, reboot your phone to complete the process.

You’re done.

Method 2: Upgrade Asus Stock Firmware Using ADB Sideload:

1. First of all enable the Developer Option, To Enable the Developer Option, Go to your Settings -> About Phone -> Software Information -> Now Tap on the Build Number 7-8 times until you see a toast message “Developer option enabled

2. Go back to settings -> Now you need to enable the USB Debugging by going to Settings -> Developer Option and Enable USB Debugging.

3. After enabling USB Debugging, In your PC Download and Extract the Downloaded ADB fast boot Zip file.

4. Now connect your phone to the Computer using a USB Cable.

5. When you connect your phone to your computer, please wait until all the drivers get installed.

6. In your ADB fastboot folder, open a command prompt window by pressing Shift Key + Right Mouse Click.

7. Now type the command in your command window

adb devices

8. If you see a pop up to allow USB Debugging on your phone, Click OK

9. Now type the command below to reboot your phone to recovery mode.

10. In your recovery mode, open the ADB Sideload option,

In TWRP,  Advanced –> ADB Sideload

CWM,  Install –> Install Zip from Sideload

11. In your computer, move the Asus ROG Phone 5s ZS676KS Stock file that you want to sideload to your phone to the ADB Fastboot folder.

12. Now execute the below command on the CMD screen.

adb sideload

Wait until the Installation process Completes.

Once the installation is completed. Reboot the Phone.

Method 3: Upgrade Asus Stock ROM via Asus Flash Tool:

1. The very first thing which you need to do is to download the Asus flash tool 32/64 bit.

2. And then install the Asus flash tool by following the wizard of the application.

3. Once the application gets installed on your Windows/Linux computer. Then launch/open the application.

4. Now you need to download the Stock ROM or raw firmware and then extract the file to your Windows/Linux PC.

5. Next, you need to boot into the recovery/bootloader mode.

Just press Power off the + press & hold power down + press and hold power up.

6. If your device does not get into recovery mode. It means your device has other methods to get into the recovery method. Just make a google search for “how to boot into the recovery mode {your device name}.

7. Once your device gets into recovery mode. Then connect your device to your computer via USB cable.


  • The Asus flash tool will automatically install the necessary driver.

8. If your device is connected to your PC then you may see a blue state signal and a serial number. see the below image.

9. Now you need to select Stock ROM and also select your device’s model.

10. Once you select your device model and firmware You have to click on “start” (Located inside the Settings option, left-hand side upper corner).

11. Now the flashing will automatically start on your device. You need to wait until the flashing gets completed.

12. Once the flashing gets completed you can see “Flash Image successfully” on the screen (at Asus flash tool).

That’s it. Your Asus device will automatically reboot. Now unplug the USB cable from the computer and enjoy it.

Thanks. I hope that the above step-by-step guide helped you to flash your device using the Asus flash tool. You can comment below if you are unable to flash your Asus device.


  • Please read and understand the Full Guide Before Flashing.
  • Use these instructions at your own risk. We will not be responsible for everything that happens to you or your device, resulting from the use of information in this guide.
  • Before flashing, Stock ROM must have a 70–80% charge.
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