Huawei P9 is one of the most popular devices launched back then. Huawei has been known to manufacture devices that are not only good in terms of performance but also perform very well in the camera segment. \r\n\r\nHuawei P9 was a featured pack phone back then when it was launched. Coming with a powerful processor, and impressive on-paper specs, the phone did stand out from the expectations of the users.\r\n\r\nThe device is quite old now, but still can be used for basic purposes. If you own a Huawei P9 then it would be advisable to flash a custom ROM to bring out the maximum potential of the phone. \r\n\r\nIn this article, we will be discussing some of the best custom ROMs for Huawei P9 in 2021.\r\nAlso Read:\u00a0Best Custom ROMs for Nexus 6P in 2021\r\nBest Custom ROMs For Huawei P9 in 2021\r\nHuawei P9\r\nLineage OS\r\nLineageOS\r\n\r\nAs you expected, the very first custom ROM on the list is Lineage OS. Lineage OS is based on AOSP and does bring you a Pixel-like experience to your Huawei P9. Lineage OS comes with stock Android UI with similar tweaks and customizations. With that being said, the ROM is quite reliable and offers stable performance to your device.\r\n\r\nLineage OS is the legacy of Cyanogen Mod and brings invaluable features of its predecessors. Moreover, the community is more inclined towards releasing frequent updates, which brings in new features and bug fixes to the ROM.\r\n\r\nROM OS:\u00a0Android 9 (Pie)\r\n\r\nDownload Link:\u00a0Lineage OS\r\n\r\nROM Maintainer:\u00a0MSe1969\r\n\r\nOfficial Thread:\u00a0Link\r\nAICP\r\nAICP custom rom\r\n\r\nNext on the list is AICP (Android Ice Cold Project) which is quite a simple theme to be used on Huawei P9. If you are looking for a ROM that is clean and keeps the interface simple, then AICP is what you should go for. The ROM does offer optimal performance on your device.\r\n\r\nUsers have reported any bugs while using this ROM. However, if you encounter one, you can report it to the developer to get it fixed with the next OTA update.\r\n\r\nROM OS:\u00a0Android 9 (Pie)\r\n\r\nDownload Link:\u00a0AICP\r\n\r\nROM Maintainer:\u00a0SpiritCroc\r\n\r\nOfficial Thread:\u00a0Link\r\nResurrection Remix\r\nResurrection Remix\r\n\r\nResurrection Remix is one of the most customizable Rom that you can go for. It is derived from other ROMs that are available for Android phones, so it brings it much more features than other themes present available online. The ROM is designed to keep the performance optimum while optimizing the battery life of your phone to last longer.\r\n\r\nIf you love tweaking around the settings of your phones then you would love using ROM. The ROM does offer various customizations, so you can customize your phone the way you want.\r\n\r\nROM OS:\u00a0Android 6 (Marshmallow)\r\n\r\nDownload Link:\u00a0Resurrection Remix (Dual SIM)\u00a0Resurrection Remix (Single SIM)\r\n\r\nROM Maintainer:\u00a0NexXuSKa\r\n\r\nOfficial Thread:\u00a0Link\r\nParanoid Android\r\nParanoid Android\r\n\r\nThe next ROM to be covered in the list is Paranoid Android, which is based on AOSP. The custom ROM brings similar features and customizations like that stock Android. With Paranoid Android, you can experience stock Android on your phone.\r\n\r\nThe ROM is focused on bringing better performance, battery life, and functionality to your phone. In simple terms, one can call it a complete package of what a good ROM should be.\r\n\r\nROM OS:\u00a0Android 7 (Nougat)\r\n\r\nDownload Link:\u00a0Paranoid Android\r\n\r\nROM Maintainer:\u00a0haky 86\r\n\r\nOfficial Thread:\u00a0Link\r\nMokee OS\r\nMokee OS\r\n\r\nThe last ROM that we have on the list is Mokee OS. Mokee OS is known to give smoother transitions on the phone with better battery life. Being based on AOSP, one can expect several customizations packed with the ROM. The ROM has support for single SIM as well as dual SIMs on your Huawei P9.\r\n\r\nWith Mokee OS, you get in-build Substratum, Omni Clock, custom Kernel, Xposed Installer. You get various features with this ROM which does not let your device feel older in terms of features.\r\n\r\nROM OS:\u00a0Android 7 (Nougat)\r\n\r\nDownload Link:\u00a0Mokee OS\r\n\r\nROM Maintainer:\u00a0surdu_petru\r\n\r\nOfficial Thread:\u00a0Link\r\nFinal Words\r\nThese were some of the best ROMs that you can flash on your Huawei P9. These ROMs are based on AOSP and do offer a stock Android experience with similar features and much more than that.