

Once unlocked, the Zenfone 8 will fail Google’s Play Integrity (formerly SafetyNet) checks. That means:
This article is for educational purposes only. The author is not responsible for bricked devices, lost data, or voided warranties. Always read Asus’s official bootloader unlock policy before proceeding. Last updated for firmware version 33.0210.0210.210. zenfone 8 bootloader unlock free
Unlocking the bootloader will wipe all your data (factory reset) and voids your warranty. It also disables some security features like Widevine L1, meaning you may lose HD playback on Netflix and similar apps. Proceed only if you understand the trade-offs. Once unlocked, the Zenfone 8 will fail Google’s
Second, . Some users, after returning to stock firmware, attempt to re-lock the bootloader for warranty claims or to sell the device. However, the official tool does not offer a re-lock feature. Paid services often exploit engineering backdoors (like EDL - Emergency Download Mode) to force a re-lock or to unlock devices blacklisted by Asus. It also disables some security features like Widevine
Rarely, Asus’s unlock servers go offline or reject your IMEI (common with pre-production units or refurbished phones). In this case, you can use the using fastboot commands. This is 100% free but requires more technical skill.