Resource XDA found the project OpenKirin, which offers custom firmware with Android devices for brands Huawei and Honor.
Team OpenKirin ported LineageOS custom firmware, Resurrection Remix and OS CarbonOS on 17 devices, including tablets.
The list of supported devices
The part of owners of devices of Huawei and Honor that disliked proprietary shell EMUI, there is little time left to unlock the bootloader and install kalymnou the firmware with a «clean» Android. July 22, will close the service with unique keys to unlock bootloader. Other ways to «roll custom» does not exist.