The NV Data file on your SM-G920T is tiny (usually less than 5 MB), but losing it feels like a death sentence for the phone. If you have a backup, recovery takes 2 minutes. If you don’t, you’ll need professional box tools or a motherboard replacement.
Without a valid NV Data file, your SM-G920T becomes a Wi-Fi-only tablet. It will not connect to T-Mobile’s network, make calls, send texts, or use mobile data. sm-g920t nv data file
~40% without a donor file. Much higher with a clean SM-G920T NV file from a working device. The NV Data file on your SM-G920T is