Asus releases February 2021 Android security patch to ZenFone 5Z


Asus launched its ZenFone 5Z flagship in the second quarter of 2018 powering Android 8.0 (Oreo), which is upgradable to Android 10. The smartphone may have an older Android version but the security levels are totally new. The Taiwan giant is sending February 2021 Android security patch to ZenFone 5Z (ZS620KL).

Asus Zenfone 5z

Make sure to check: How to root ASUS Zenfone 6 [Magisk]

The package can be identified by the firmware version It is to be noted that this is a minor security patch update and does not bring any new major features or changes in user experience.


  • Updated Android security patch (2021-01).

The software is having a staged rollout and will take time to reach every ZenFone 5Z unit. However, you can check for the update manually in System updates, under the Settings app of the device. A pop-up will appear if the firmware is available for you to flash.

Read more: Possible ASUS ROG Phone 7 (ASUS_I007D) passes Bluetooth SIG website

Asus ZenFone 5Z Specifications

ZenFone 5Z is fueled by Qualcomm SDM845 Snapdragon 845 (10 nm) chipset and Adreno 630 GPU. The device flaunts a 6.2 inch IPS LCD display with Corning Gorilla glass shield. It houses a single 8MP camera at the front and dual rear lenses consisting of a 12MP main and an 8MP ultrawide shooter.

It enables the user to expand the memory via a microSDXC card slot while 64GB/4GB RAM, 64GB/6GB RAM, 128GB/6GB RAM, and 256GB/8GB RAM are already available as default storage variants. The phone packs a 3300 mAh battery with 18W of fast charging support.

Related: Asus ROG Phone 5 receiving its very first update with a couple of new features
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"Do anything, but let it produce joy" Excited about technology, Android lover. If not writing, you will probably find me traveling.


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