The mandatory first step. Use a tool compatible with Kirin/Snapdragon chipsets. Install TWRP: Flash a custom recovery like using Fastboot on your PC. Download Files: Get your chosen (Google Apps) package. Wipe Device: In TWRP, perform an Advanced Wipe of Data, Cache, and System. Flash ROM: Select the ROM file in TWRP and swipe to install. Flash GApps: Follow the same process for Google services. The first boot may take up to 10 minutes. 💡 Resources & Community XDA Developers: The best source for finding specific Huawei Y6 Prime GitHub Treble Wiki: Project Treble compatibility list for GSI options. Video Guides:
Here's a general guide to installing a custom ROM on your Huawei Y6 Prime: huawei y6 prime custom rom
If you manage to unlock the bootloader, the following options have been tested for the Y6 Prime 2018 (ATU-L21/L22/L31/L42) Project Treble / GSI ROMs: The mandatory first step
He laughed. It was a genuine, relieved laugh. The Y6 Prime, the phone everyone told him to throw away, was running an operating system two generations newer than it was ever meant to see. Download Files: Get your chosen (Google Apps) package