Realme C30s Imei Repair

Is your Realme C30s showing “Invalid IMEI,” “IMEI is Null,” or “No Network”? You are not alone. The Realme C30s (model number RMX3644) is a budget powerhouse, but like many MediaTek-powered devices, it is prone to IMEI corruption after firmware updates, rooting attempts, or flashing stock ROMs.

Losing your IMEI number means losing cellular functionality. You cannot make calls, send SMS, or use mobile data. This guide provides a deep dive into the causes, preventive measures, and five proven methods to repair IMEI on the Realme C30s—from simple engineering codes to advanced tools like Maui Meta and NCK Box.

After successfully repairing the IMEI:

  • Check current IMEI state:
  • Inspect partitions and backup:
  • Log via ADB and platform tools:
  • Determine whether baseband/modem firmware is present:

    • Step 1: Download Maui Meta Tool v9.xxx (v9.2036 or newer). Extract the folder.

    Step 2: Run MauiMETA_exe_v9.2036.exe as Administrator. realme c30s imei repair

    Step 3: Connect the Realme C30s in Meta Mode.

    Step 4: In Maui Meta, click “Reconnect” (or press F8). The tool should show “Connected.”

    Step 5: Click the “IMEI / NVRAM” tab (database file). Select Load DB. You must load the correct AP and BP database files from the Realme C30s stock ROM. These are .cfg or .bin files inside the target folder of the firmware.

    Step 6: Uncheck “Dual IMEI” (if you only have one SIM) or check it for dual SIM. Is your Realme C30s showing “Invalid IMEI,” “IMEI

    Step 7: Type your original IMEI in the “IMEI 1” and “IMEI 2” fields.

    Step 8: Click “Download / Write to Flash.” Wait for “Pass” or “Write Success” in green.

    Step 9: Disconnect, reboot the phone, and test.

    Warning: Never write a random generated IMEI. Using an IMEI from another phone is illegal in many countries. After successfully repairing the IMEI:

    For future safety, if your phone currently works:

    This method writes IMEI to the Modem’s NVRAM.

    A: Check your baseband version in Settings > About Phone. If it shows “Unknown,” you have a modem firmware mismatch. Flash the correct lk.bin and preloader.bin from the original stock ROM.