For the Samsung Galaxy S6 (SM-G920F) Go to product viewer dialog for this item.

Click "Write NV" or "Write NVDATA" and select the downloaded .bin file.

If software fixes fail (often showing the "Security damaged" error), you will need a hardware dongle. These are professional-grade tools used by repair shops.

Calibration data for cellular radios. SIM Lock Information: Network lock status. Product Code: CSC information.

A: Tools like "NV Items Reader Writer" exist for older models (like the S3). However, security updates on modern Android (6.0 and above) block these older methods. You cannot use these simple Windows apps on an SM-G920F running recent firmware.

Ensures the device can connect to specific network frequencies (2G/3G/4G).

: The phone fails to recognize its own modem, leading to "No Service". How to Repair or Restore SM-G920F NV Data

NV (Non-Volatile) data file for the Samsung Galaxy S6 ( Go to product viewer dialog for this item. Go to product viewer dialog for this item.

The NV data on the Samsung Galaxy S6 platform (Exynos 7420 chipset) serves several essential roles: Network Identity

For a total loss of IMEI/Baseband on the , writing a fresh nv_data.bin is usually the required first step. Important Considerations for 2026

This backup is your insurance policy against permanent damage. If something goes wrong, you can always restore your device to its previous state. Tools provide specific buttons for this, such as "Read EFS" or "Read CERT" for creating backups.

The SM-G920F (Galaxy S6) does not have a removable SD card. If you flash a corrupted or incompatible NV file, you can wipe the primary modem partitions.

The SM-G920F can be sensitive to this data. If the NV data becomes corrupted, lost, or overwritten with an incorrect file, you will likely encounter the following frustrating symptoms: