Not every Android smartphone is eligible to get 3 years of OS and security updates from their makers, but that doesn't mean you have to abandon them after the official support ends. XDA's huge aftermarket development community is undoubtedly the primary driving force behind the custom ROM scene, which is enough to breathe new life into devices that are not being updated by the respective OEMs anymore. The ever-popular LineageOS custom ROM already has a pretty large roster of officially supported devices, while developers frequently use its open source codebase as the foundation for porting newer versions of Android to legacy devices. Now, you can add the Samsung Galaxy A10, the Motorola Moto G5S and a bunch of 2013's Sony Xperia phones to the list of devices unofficially supported by Android 10-based LineageOS 17.1.

Samsung Galaxy A10

The entry-level Galaxy A10 received its Android 10 update from Samsung a few months ago. In case you are not a fan of the One UI skin and have the desire to run stock Android on your phone, then the unofficial LineageOS 17.1 ROM would be a good choice. Do note that advanced IMS services like VoLTE and VoWiFi are not working on this ROM since there is no easy way to replicate Samsung's proprietary implementation.

Samsung Galaxy A10: Unofficial LineageOS 17.1 || XDA Forums

Motorola Moto G5S

Motorola stopped updating the Moto G5S after Android Oreo, but owners of this phone can now try out Android 10 in the form of LineageOS 17.1, courtesy of XDA Member AsD Monio. The initial builds are not much polished and there are some known bugs, so ensure that you enlighten yourself of the same before proceeding.

Motorola Moto G5S: Unofficial LineageOS 17.1 || XDA Forums

Sony Xperia SP and Xperia T/TX/V

If you are still rocking a Sony Xperia SP that was launched back in 2013 with Android 4.1.2 Jelly Bean, you can try out this fantastic LineageOS 17.1 build (linked below) by XDA Recognized Developer AdrianDC. All the core functionalities appear to be present, so you can give it a shot if you are feeling adventurous.

Sony Xperia SP: Unofficial LineageOS 17.1 || XDA Forums

Similarly, a unified release of unofficial LineageOS 17.1 based on Android 10 is available for the Xperia T, Xperia TX, and the Xperia V from the same developer. Keep in mind that you need to merge the internal physical SDCard partition and the apps data partition into a common userdata partition before installing this ROM.

Sony Xperia T/TX/V: Unofficial LineageOS 17.1 || XDA Forums