ASUS is reportedly telling customers they can no longer unlock the bootloader on their phones, including the Zenfone 9 and Zenfone 10.
Update from Asus
The service team reply misunderstood the situation. Unlock tool is unavailable at this moment but we are allowing the possibility to unlock, please stay tuned.
**TL;DR
ASUS has apparently withdrawn the ability to unlock the bootloader on its phones.
As per the company’s technical support team, Zenfone 10 and Zenfone 9 users won’t be able to root their phones.
The end of an era. Companies also locked the bootloader back then and you'll need to find a vulnerability to exploit in order to unlock it. When custom roms starting to become popular, companies relaxed their stance and allowing their customers to unlock the bootloader using an official channel instead of utilizing a security exploits, perhaps as a competitive advantage so power users would recommend them to their friends and family.
Now with declining popularity of rooting and custom roms, companies are starting to stop allowing their customers to unlock the bootloader again. From their perspective, allowing bootloader unlocking is nothing but trouble (support-wise) and might even cannibalize sales (why upgrade your phone every two years when you can install a custom ROM with the latest version of Android), so declining popularity of custom ROMs is a perfect excuse for them to stop allowing bootloader unlocking.