Yes, as long as you use to flash a device you own. It is part of legitimate warranty repair procedures. Using leaked or proprietary files could have legal implications.
is version , released in March 2021. While ASUS provides standard ZIP-based firmware for manual updates through their Official Support Page , RAW files are typically separate and intended for use with the Asus Flash Tool . Flashing Requirements To flash RAW firmware, you generally need the following: asus zenfone 5z -zs620kl raw firmware-
Standard firmware updates are typically distributed as standard OTA .zip packages designed for system upgrades. Conversely, is a full-package, low-level factory image. It contains raw binary partitions—such as boot.img , system.img , vendor.img , and critical modem files—packaged inside a .raw.zip file. Yes, as long as you use to flash a device you own
Official OTA updates generally do not support downgrading, but flashing a RAW file can revert the device to an older Android version (e.g., from Android 10 back to 9). is version , released in March 2021
Safely reverts your phone from Android 10 back to Android 9 (Pie) or Oreo if needed. Prerequisites Before Flashing