Deep reviews of custom ROMs for the Huawei Y6 Prime (2018/2019) are rare because installing them is notoriously difficult. Since 2018, Huawei has officially stopped providing bootloader unlock codes, which is a mandatory first step for most custom firmware. The Bootloader Obstacle

Please keep in mind that installing a custom ROM can be a complex process, and you should carefully consider the risks and requirements before proceeding. Make sure to research thoroughly and follow the installation instructions carefully to avoid any issues.

  1. XDA Developers: A popular forum for Android developers and enthusiasts, where you can find custom ROMs, tutorials, and discussions.
  2. Huawei Y6 Prime forum: Look for a dedicated forum for your device, where you can find specific guidance and resources.

C. "Fastboot ROMs" (Stock Restorations)