| Error Message | Why It Happens | Fix | | :--- | :--- | :--- | | | Meta mode disabled in secure firmware. | Flash a patched preloader or use Boot Mode (DA) with Auth Bypass . | | “S_DL_GET_DRAM_SETTINGS_FAIL” | Wrong DA file or not using bypass. | Use MTK Bypass Utility (for SLA/DAA security). | | “Write IMEI Failed: NVRAM Full” | NVRAM partition has no free space. | Factory reset via recovery, or use fastboot erase nvram (dangerous). | | “Port detection stuck at 0%” | VCOM drivers not installed or USB cable is charge-only. | Reinstall drivers. Use a short, high-quality cable. Try USB 2.0 port. | | Phone shows IMEI but No Service | Baseband (modem) is damaged. | Flash the modem.img and lk.bin from the stock firmware via SP Flash Tool (Download Only mode). |
If you still have a working custom recovery (TWRP), back up the following partitions:
Ensure you have installed the MediaTek USB VCOM Drivers . Try a different USB port or cable.
Once you’ve successfully repaired your IMEI, prevent it from happening again.
Before jumping into the repair process, you must understand where the IMEI lives.
: Choose the correct CPU or model profile (e.g., MT6771 for Oppo F11).