Oppo Realme Mtk Nvdata-nvram Backup _best_ -

This method reads the exact Nvdata and Nvram partitions from your phone without erasing anything. It works on locked bootloaders.

A popular choice for technicians. It features dedicated buttons for "NV Read" and "NV Write" under the MTK tab, making it very user-friendly. Oppo Realme MTK Nvdata-Nvram Backup