ASUS ROG Phone 2 ZS660KL Firmware Flash File (Stock ROM)

Asus has recently unveiled its second-generation gaming smartphone called ASUS ROG Phone 2. It’s a successor device of the previous generation ASUS ROG Phone. If you’re using the ROG Phone 2 model or planning to buy, you should check out the article completely. Here we will share all the latest Asus ROG Phone 2 ZS660KL Stock Firmware Collection. You can download the latest firmware update files from here.

As we all know that Android is an Open Source platform based on Linux. It’s easily customizable. Sometimes, due to the customizations or flashing any firmware or mod file improperly may brick the device. Your device software may be broken or may get the boot loop issue. Therefore, flashing Stock Firmware on your device will solve most of the issues completely.

If you’re facing problems like screen freezing, touch unresponsiveness, camera fail, or boot loop issue, you can do a factory reset or flash the latest Stock Firmware. Check the advantages of Stock Firmware from below.

ASUS ROG Phone 2 ZS660KL Firmware Flash File (Stock ROM)

Advantage of Stock Firmware

  • Flash Stock To Unbrick your Asus ROG Phone 2
  • Fix the device boot loop issue
  • Upgrade and Downgrade your phone software version
  • Flash Stock ROM to unroot the device
  • Fix Bugs on your phone
  • Fix lag or stutter on Asus ROG Phone 2
  • Increase software performance, battery draining issue, OTA update issue
  • Revert back to Stock ROM will gain phone warranty (if applicable)

Android always offers so many customizations, tricks, tweaks, installing third-party Custom ROMs, Mod files, enabling Root access, and more. If you’re an advanced user then you may find difficulties or bugs sometimes on any newly installed Custom ROM or any mod file. Your device may not work properly or slow down in performance, battery draining issue, and more. In these cases, going back to the Stock ROM is the only option to get things back on track. Even if you’ve installed any tweak or root app and your device can’t perform well, or bootloader issue, or anything else, stock firmware is the best option.

If you have bought this device and searching for the full firmware installation, then you can simply download the firmware file from the link given below. Then flash the firmware on your phone by following the guide properly.

Asus ROG Phone 2 Specifications and Features

The Asus ROG Phone 2 packs a 6.59-inch Full-HD+ AMOLED display with 1080×2340 pixels resolution, 120Hz refresh rate, 1ms response time, and 10-bit HDR support. It’s powered by the octa-core 2.9GHz Snapdragon 855+ SoC, coupled with up to 12GB of LPDDR4X RAM. While the inbuilt storage is up to 512GB UFS 3.0 which comes in two storage variants of 128GB and 512GB. The ROG Phone 2 features dual front-facing stereo speakers with DTS: X Ultra support.

The ROG Phone 2 sports a 48MP primary camera along with a 13MP wide-angle camera which offers a 125-degrees field of view. While the front features a 24MP selfie shooter. It runs on ROG UI based on Android 9.0 Pie out-of-the-box. But the company has mentioned that the users can switch to Stock Android UI in the future.

In terms of the connectivity options, it includes Wi-Fi 802.11a/b/g/n/ac, WiFi-Direct, NFC, a 3.5mm audio jack, 4G LTE, Bluetooth 5.0, USB Type-C port, and a side-mounted connector. The phone includes an accelerometer, compass, proximity, hall sensor, ambient light sensor, in-display fingerprint sensor, gyroscope, and an ultrasonic sensor. The ROG Phone 2 packs a massive 6,000 mAh battery with 30W ROG HyperCharge technology. Asus claims that the battery will 7 hours of PUBG gameplay @60Hz refresh rate on a full charge.

Asus ROG Phone 2 ZS660KL Firmware Flash File:

Software Version Changelog
WW-17.0240.2103.75 [Download]
  1. Android security patch update to 2021-03
  2. Fix issue with poor WiGig reception
  3. Fixed issue with using the  Kunai controller and type-c headphones connected through the side port
WW-17.0210.2001.60 [Download]
– Upgrade the system to Android 10.
– Support for system updates via Google Play.
– Remove Go2Pay and tagging function in the library
– Support for AuraSync lighting profiles when attaching Lighting Armor Case
– Add advanced brightness settings to QuickSetting.
– Emergency calls are applied to some areas. Remove some related settings from Armory Crate
– Add settings to change the Power key Menu.
– Add gesture navigation master, full screen.
– Support Android 10 Dark Theme.
– Add “Recommended action” in advanced notification settings.
– Do not pin notifications when turning on System Light while playing music.
– Change Wi-Fi icon design.
– Some 3rd party applications may not be compatible with Android 10.
– “Gestures on dark screen” will turn off after upgrading the system.
WW-16.0631.1910.35 [Download]
  1. Added grid display for game selection in the Games Library of Armoury Crate
  2. Added game cover customization in the Games Library of Armoury Crate
  3. Added AirTriggers slide gesture in Game Genie (Beta)
  4. Fixed the issue where navigation bar couldn’t be hidden when playing “Black Desert”
  5. Fixed the issue where Game Genie panel was pulled out easily when Key Mapping was used
WW-16.0631.1908.21 [Download]
  • Reduced the chance of blur image caused by shaking for indoor selfies
  • Fixed the issued when rejecting a call while listening to music via Bluetooth caused the music to be broadcast through the speaker
  • Fixed the issue where AirTriggers was triggered by lower than the set value after rebooting
  • Fixed the issue where occasionally when restarting phone was stuck at booting animation
  • Fixed the issue where the LED indicator function was missing
  • Fixed the issue where a pop up a window showed Launcher stopped working after completion of data recovery
  • Fixed the issue where the power menu rotated 180 degrees when the phone was in a certain orientation
  • Fixed the issue where starting the phone when it was docked on TwinView Dock II caused occasional black screens and incorrect orientation
  • Fixed the issue where the refresh rate options in Settings and Quick Settings were inconsistent when connected to TwinView Dock II
WW-16.0631.1908.12 [Download]
  • Added the AirTriggers/Key Mapping/Macro tabs, and Share/Import features to the Scenario Profiles in Armoury Crate
  • Added setting options for AirTriggers squeeze gesture
  • Added the option to switch between different Bluetooth devices in Calling Screen
  • Added merge duplicate contacts feature
  • Optimized the UI of moving photos or selecting all photos in Gallery
  • Optimized hints of available system updates
  • Fixed the issue where Game Genie cannot be called out by specific gesture
  • Fixed the touch issue when log in to “City of Forever 7 Days”
CN-16.0621.1907.48 [2.39 GB, Download]
  • Fixed the issue where occasionally can not turn on Wi-Fi hotspotFixed the issue where occasionally Wi-Fi hotspot cannot be turned on.
  • Fixed muted startup sound issue.
WW-16.0622.1907.33 [2.2 GB, Download]
  • Added three ROG live wallpapers.
  • Light Luminous Core theme supports live wallpaper effect.
  • Fixed the issue where occasionally can not turn on WiFi hotspot.
CN-16.0621.1907.47 [2.39 GB, Download]
  • Added three ROG live wallpapers.
  • Added Always-on Panel feature.
  • Fixed abnormal SMS UI issue in Light Luminous Core theme.
  • Fixed the issue where video or system sound occasionally cannot be played.
WW-16.0622.1906.19 [2.12 GB, Download]
  • “Aura lighting –
    • Support 4 new lighting effects for AeroActive Cooler II – Rainbow, mixed lights, comet, flash and dash
    • Support 4 new lighting effects for TwinView Dock II – Rainbow, mixed lights, comet, flash and dash
    • 4 basic lighting effects for ROG Kunai Gamepad support – Static, breathing, strobing, color cycle”.
  • Added the aura light selection option for AeroActive Cooler II and TwinView Dock II.
  • Support the classic Pixel-like system style.
CN-16.0621.1906.24 [2.3 GB, Download]
  • Fixed the issue where QQ Music/KuGou Music kept playing in the background after clearing the app.
  • Fixed the issue where the volume increased in the 3.5mm headset when entering the game while on QQ voice call.
CN-16.0621.1906.12 [2.38 GB, Download]
  • Added Storm network acceleration solution – Automatically optimized network and enhanced stability during gameplay.
  • Solar Core: Optimized performance for 60 FPS “Game for peace”, high/super high frame rate “QQ Speed” and “Raziel”. Enhanced frame rate performance.
  • Thunder Touch: Enhanced touch sensitivity. Provided a better touch experience.
  • Aura lighting: Support lighting effects for AeroActive Cooler II, TwinView Dock II, and ROG Kunai Gamepad.
CN-16.0620.1906.18 [2.29 GB, Download]
  • Shipped with the device out-of-the-box.

Steps to Install Asus ROG Phone 2 Stock Firmware:

Before installing, make sure to follow the pre-requirements and install the necessary drivers and tools on your PC.


Instructions to Install Firmware on Asus ROG Phone 2

Check out the full installation method. We have provided two possible methods for installing the stock firmware. You need to follow only one method properly.

We’re at GetDroidTips won’t be responsible for any kind of damage/error that occurs to your handset while/after following this guide or flashing the file. Do it at your own risk.

Method 1: Install via Recovery

  1. First, you have to download the zip file from the above link and rename the file to
  2. Now, switch off your device and reboot into recovery mode by pressing the Power button +Volume UP button.
  3. After booting into the recovery mode select apply update from sd card.
  4. Now, choose the file which you have downloaded earlier.
  5. Wait for the complete installation process.
  6. Once the installation process is completed, you can Reboot your ROG Phone 2.
  7. That’s it. You’re done.

Method 2: Install via ADB Sideload

  • Download the ADB and Fastboot drivers for Windows or Mac and extract them on your PC.
  • Install the ADB and Fastboot drivers.
  • Now, move the downloaded OTA zip file to ADB Folder.
  • Enable Developer Options and USB Debugging on your device.
  • Open the extracted ADB Folder and Open Command Window by pressing Shift Key + Right Mouse Click.
  • Switch off your phone.
  • Reboot your phone into recovery mode by pressing the Volume UP + Power button together.
  • Now, connect the PC to Mobile with a USB Cable.
  • Next, enter the following command in the command window and press enter:
    adb devices
  • This command will show if any device is connected properly. If it doesn’t show, then please check the drivers are installed properly or if the attached cable is damaged.
  • If your device is listed, then please type the below command in your command window.
    adb sideload
  • Wait until the installation process completes.
  • Once the installation process is completed and You can Reboot your ROG Phone 2.
  • Enjoy!

Hope you have successfully installed or upgraded your device stock firmware easily. In case, you’re facing any issues, you can ask in the comments below.


  1. Hi.. im in search for solution to fix my phone. It was bricked. I cannot start, it was error slot _a unbootable.
    I already download the stock rom and follow your instruction but it didnt success. no such file error. anyway, maybe im skip something.. or my execution not right. Very much thank you if you would help me.. Pleaseee…

  2. Hi.. im in search for solution to fix my phone. It was bricked. I cannot start, it was error slot _a unbootable.
    if you could help… Pleaseee… very sad now.

  3. Asus rog 2 phone.. how to downgrade to Android 9 from android 10 beta.. to the default stock rom which i buy in January on flipkart.. please help me out..

    thank in advance..

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