Enable and OEM Unlocking under Developer Options on your phone.
and are facing issues like "Null IMEI," "Unknown Baseband," "Security Damage Error," or "Not Registered on Network," you likely have corrupted NV (Non-Volatile) data or a damaged EFS partition. This problem frequently occurs after a failed firmware update, custom ROM installation, or unsuccessful root attempt. samsung g925t nv data file download
Ensure your SM-G925T has at least 50% battery capacity. Enable and OEM Unlocking under Developer Options on
to select the "Repair Security" option, which often fixes this error automatically after writing the NV file 5.2.1 . Troubleshooting & Tips Ensure your SM-G925T has at least 50% battery capacity
The most reliable, community-vetted source for this file comes from the GSM-Forum. A confirmed working copy of is available via the following direct download link:
This is a specific Samsung internal error that signals the phone's security partition is "broken". The NV data file is the "patch" used by specialized repair tools like the Z3X Box or Chimera Tool to rewrite the phone’s DNA.
Important Note on IMEI Repair: Writing a generic NV data file may change your IMEI to a generic placeholder or the donor phone's IMEI. You must use the "Repair IMEI" function in your service tool to type in the original IMEI printed on the back of your phone's chassis to remain legal and regain network access. Troubleshooting Common Issues