How To Downgrade ZenFone 7 From Android 11 to 10

ZenFone 7 / ZenFone 7 Pro (ZS670KS / ZS671KS) Software downgrade from Android 11 to target Image Version: WW-29.14.53.23 (Android 10) for WW SKU only. ※ 

Download ZenFone 7 / ZenFone 7 Pro Firmware  Android 11 to Android 10

Before you start the downgrade, please make sure all pictures, important data finished the backup. 

The downgrade process will erase all data to be a new system. 

ASUS company would not not be responsible for the risk of data loss. Steps of Update: 

1. Download the firmware and copy to internal storage. 

2. Remove Google Account. 

3. Pull down the quick setting list. 

4. The system will pop up a message which detected a firmware update info. 

5. Execute the downgrade firmware file. * If you skip step 5, and you don't know how to trigger the downgrade process again. Please reboot the system, and the downgrade info will pop up again. 

*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 backup your important data before system upgrading.

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Fix ZenFone doesn't play HD movies in Netflix

If you're using your ZenFone to watch Netflix but you're not getting the quality you expect, or the video is blurry or grainy, follow the steps below to determine if your device plays in high definition (HD). 

1. Please check if your Netflix plan support HD availiable or Ultra HD availiable. And contact APP vendor to change the plan if needed. 
2. Check ZenFone specification. Widevine L1 is required for HD playback in Netflix. To check this: Open the Netflix app on your Android phone or tablet. From the bottom right corner, tap More More menu > App Settings. Scroll to the bottom, then tap Playback Specification. Next to Widevine, you'll see either L1 or L3. 
3. If you see L1 but you're not getting HD playback, please contact APP for solution. 
4. If you see L3, Please check if the Unlock device service be triggerred. Once the device unlocked, some digital contact may not longer be used. And only Widevine L3 digital right provided.

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