If you have ever flashed a custom ROM on a MediaTek (MTK) device and suddenly lost your signal, Wi-Fi, or Bluetooth connectivity, you likely have an NVRAM issue. The stores critical device information like IMEI numbers, MAC addresses, and calibration data.
Use SP Flash Tool's "Readback" tab to create a backup of your nvram.img and nvdata.img partitions before using any editor tool. mtk nvram editor tool top
Maui META (MediaTek Engineering Tool Application) is an official official factory tool designed specifically for hardware testing, RF calibration, and NVRAM editing. It interacts directly with the phone’s modem in Meta Mode. If you have ever flashed a custom ROM
What are you trying to fix (Invalid IMEI, WiFi error, etc.)? Are you using Windows or Linux ? Maui META (MediaTek Engineering Tool Application) is an
Restores the original IMEI number (Note: Changing IMEI to a non-original number is illegal in many jurisdictions).
SP Flash Tool is the official, industry-standard utility developed by MediaTek for flashing firmware onto MTK devices. While primarily a flashing tool, its advanced parameters make it the most reliable method for managing NVRAM partitions.
Modifying NVRAM data carries inherent risks to your device's core operating radio frequencies.