Based on the context of Nokia/MTK devices, the NVRAM (Non-Volatile Random Access Memory) file stores critical radio calibration data, IMEI, and Wi-Fi/Bluetooth MAC addresses. "Making a feature" (or, more commonly, a backup/restore) of this file is essential when flashing firmware, repairing IMEI, or fixing "NVRAM Warning: Err 0x10" messages on Nokia Android phones like the Nokia 2.4.

You typically look for a Nokia 2.4 NVRAM file or backup when: IMEI is "Unknown" or "Invalid"

, calibration settings, and network configurations. Because the Nokia 2.4 runs on a MediaTek (MTK) chipset

Flash: Connect the device in "VROM" mode (typically powered off without holding buttons, or using specific volume combinations) and click 'Download'.

SP Flash Tool: A standard utility for MediaTek devices used to "write" individual partitions like NVRAM.

What you actually need:

A valid NVRAM binary file (usually named NVRAM0.bin, NVRAM1.bin, or prod_nv.bin) extracted from a working Nokia 24 of the exact same model and region.

How to restore/write NVRAM (general workflow)

  1. Verify the backup matches the exact device model and firmware generation.
  2. Boot phone into service mode and connect to the tool.
  3. Load the NVRAM file in the tool and choose “write”/“restore”.
  4. Wait for completion, then reboot and test radio/network functions.
  5. If issues occur, restore the original backup immediately.

Obtaining and Editing the NVRAM File