Search Google for "NV items reader writer best" and you'll find shady forums offering paid software claiming to "unlock any BIOS" for $19.99. These are almost always:
: A legacy but still cited tool for specific NV item reading and writing functions, particularly for 3G/CDMA devices. It allows users to read specific item IDs (e.g., 0579) and save them individually for manual editing. TEMS Investigation nv items reader writer best
Often bundled with QPST, QFIL is excellent for backing up the entire EFS partition Search Google for "NV items reader writer best"