1. What is the NV Data File?

NV = Non-Volatile memory.
The NV data file contains device-specific calibration and configuration data stored in the EFS (Encrypted File System) partition.

Flash TWRP via Odin (AP slot, Auto Reboot OFF).

Boot directly into TWRP (Volume Up + Home + Power immediately after flash).

Wipe Cache, Dalvik, and Format Data (not just factory reset).

Install a custom kernel that supports NV rebuild (e.g., Kernel) – this forces the modem to regenerate missing parameters.

Download a clean NV Generator script specific to the G920F. XDA user "sortitout" created a shell script that repopulates the /factory directory with generic values.

Use ADB to push the script:

adb push repair_nv.sh /tmp/
adb shell
chmod +x /tmp/repair_nv.sh
sh /tmp/repair_nv.sh

Reboot to Download mode and flash only the CP (Modem) file from stock firmware.

Sm-g920f Nv Data File 〈Working · 2025〉

Samsung Galaxy S6 (SM-G920F) , the Non-Volatile (NV) data file is critical for maintaining network connectivity, as it contains calibration and security data like your baseband version

Defines how the phone identifies itself on cellular networks. Radio Calibration: Parameters for operating on 2G, 3G, and LTE frequencies. MAC Addresses: Bluetooth and WiFi addresses. What Causes Corruption? Improper Flashing: sm-g920f nv data file

Z3X or Chimera Tool: These are professional-grade service tools. They can "Repair" or "Write" NV data files (often in .nv or .bin format) to the device to restore the IMEI and network functionality. 3. Using a "Donated" NV Data File Samsung Galaxy S6 (SM-G920F) , the Non-Volatile (NV)

Disclaimer: This guide is for educational and repair purposes only. Modifying device identifiers may violate local laws. Always ensure you have the legal right to repair your own property. The author is not responsible for network bans or legal consequences. Flash TWRP via Odin (AP slot, Auto Reboot OFF)

The NV file is closely related to, but distinct from, the EFS partition. While EFS holds the IMEI and basic radio settings, the NV data file holds more comprehensive calibration details. IMEI & Network Identity:

Technicians generally use specialized service boxes to resolve these issues. Key steps from community guides include: Write NV Data from Backup

1. What is the NV Data File?

NV = Non-Volatile memory.
The NV data file contains device-specific calibration and configuration data stored in the EFS (Encrypted File System) partition.

Flash TWRP via Odin (AP slot, Auto Reboot OFF).
Boot directly into TWRP (Volume Up + Home + Power immediately after flash).
Wipe Cache, Dalvik, and Format Data (not just factory reset).
Install a custom kernel that supports NV rebuild (e.g., Kernel) – this forces the modem to regenerate missing parameters.
Download a clean NV Generator script specific to the G920F. XDA user "sortitout" created a shell script that repopulates the /factory directory with generic values.

Use ADB to push the script:

adb push repair_nv.sh /tmp/
adb shell
chmod +x /tmp/repair_nv.sh
sh /tmp/repair_nv.sh

Reboot to Download mode and flash only the CP (Modem) file from stock firmware.