Getting your hands on a shiny new ASUS ROG Phone II might be a difficult task at this moment due to the COVID-19 outbreak, but that didn't stop the Taiwanese company from releasing the long-anticipated Android 10 update as well as the corresponding kernel source code for this device. Matter of fact, an official bootloader unlock utility for the ROG Phone II does exist, making this beastly phone a feasible choice for tinkering. ASUS went a step further and sent several units of the ROG Phone II to custom ROM and kernel developers, just like they did with the ZenFone 6, i.e. their current mainstream flagship. One of those recipients, XDA Recognized Developer luca020400, has now released an unofficial build of LineageOS 17.1 for the device.

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To try out this build of LineageOS‌ 17.1, all you need is an unlocked bootloader and a custom recovery like TWRP installed on your device. While the phone is officially supported by TWRP, you might require an Android 10-compatible unofficial build by the maintainer. Some users are having difficulties to install the current build of LineageOS‌ 17.1 via TWRP, but there is also an alternate way of flashing the package via Fastboot. The developer has also provided a standalone version of the LineageOS recovery image to make things easier.

It is worth mentioning that users don't have to install a separate Google apps package (commonly referred to as GApps) after installing this particular build, as the developer has decided to ship them inside the same package for the time being. The ROM doesn't support Air Triggers and the vibrator does not work properly, but fundamental functionalities, including the 120Hz high refresh rate, are working.

Unofficial LineageOS 17.1 for the ASUS ROG Phone II — XDA Thread

XDA Senior Member Freak07, better known as the creator of the Kirisakura custom kernel, has also released a beta build of his kernel for the ROG Phone II running Android 10. If you want to get the most out of the camera, you can check out some Google Camera ports for this phone as well.

ASUS has already done an impressive job by allowing the users of the ROG Phone II to choose between the gaming-inspired ROG UI and the stock-like ZenUI Classic. Now that the aftermarket development work on the phone is gaining momentum, perhaps we might see the official inclusion of this phone within the LineageOS project soon.