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The NV Data file for the SM-G920F holds critical information, including:
How do you know if you need an NV data file? Look for these specific symptoms:
| Symptom | What you see on the screen |
| :--- | :--- |
| Null IMEI | Dial *#06#. It shows "Null" or "Blank" instead of a 15-digit number. |
| Unknown Baseband | Go to Settings > About Phone > Status. Baseband version shows "Unknown." |
| No Signal / Emergency Calls Only | The signal icon shows an empty triangle or a circle with a line. |
| Invalid SIM Card | Even with a working SIM, the phone rejects it. |
| Wi-Fi and Bluetooth MAC addresses change on every reboot | A clear sign of NV corruption. |
| Phone restarts when trying to access network settings | Severe corruption causing modem crashes. | sm-g920f nv data file
If you experience any of these after flashing firmware or trying to root, your NV Data file is almost certainly corrupt or missing.
Stay on the right side of the law. Your NV repair should only aim to recover your phone’s original identity. The NV Data file for the SM-G920F holds
NV (Non-Volatile) data resides in the EFS (Encrypted File System) partition of the phone’s chipset—typically the Shannon 333 modem on the Exynos 7420 platform. Unlike user data or system apps, NV data stores permanently assigned hardware identifiers and calibration parameters, including:
Think of NV data as the phone’s DNA. Without it, the device cannot authenticate with mobile networks, secure Bluetooth pairing fails, and even Samsung’s own diagnostics reject the hardware. Stay on the right side of the law
When you Google the keyword "sm-g920f nv data file," you are typically looking for one of two things:
Critical Warning: There is no "universal" NV Data file. If you download a random NV file from a forum and write it directly to your phone, you will end up with someone else’s IMEI. In most countries (USA, UK, EU, India, etc.), using a mismatched or cloned IMEI is a criminal offense. The goal is to repair your own NV data, not clone another device.
If you have access to another working SM-G920F (ideally with the same baseband version), you can: