Twrp323forgalaxyj7prime -

Ensure your J7 Prime has at least 60% charge.

Install the latest Samsung USB Drivers on your Windows PC. twrp323forgalaxyj7prime

In the same Developer Options menu, enable OEM Unlock. Ensure your J7 Prime has at least 60% charge

Advanced cleaning of Cache, Dalvik, and Data partitions. Prerequisites Before Installation and Data partitions. Prerequisites Before Installation