Basically, it only needs three steps.Download the OS ROM specific for your phone from pixelexperience. https://get.pixelexperience.org/Download the TWRP specific for your phone from twrp.mehttps://twrp.me/Devices/Flash the TWRP to your phone via lsdyhttps://lsdy.top/gjzsUsing the TWRP to install the pixel like OS to your phoneReferenceshttps://en.wikipedia.org/wiki/TWRP_(software) https://www.bilibili.com/video/BV1rm4y1L76V/?spm_id_from=333.337.search-card.all.click