Complete the initial setup. Re-enable Developer Options and ensure "OEM Unlocking" is greyed out but active. Phase 2: Choosing a ROM (GSI)

| Problem | Solution | | :--- | :--- | | | Reboot to TWRP. Wipe Dalvik/Cache. If persists, format Data again and reflash. | | No SIM Card detected | You lost your IMEI. Restore EFS from TWRP backup. If no backup, flash stock firmware via Odin and start over. | | Camera not working | The A04s has a weird 50MP sensor. Some ROMs require the "A04s Camera Fix" patch from XDA. Flash via TWRP. | | Wi-Fi drops constantly | Reset network settings in Settings > System. Or check your router’s band; some kernels have issues with 5GHz. | | SafetyNet / Play Integrity fails | Install Magisk modules: "Play Integrity Fix" and "Shamiko." Hide the Magisk app. |

If you decide to flash, tools like Custom-Super-Maker

October 26, 2023 Subject: Analysis of Custom ROM availability, installation procedures, and risks for the Samsung Galaxy A04s (Model SM-A047).

: Inside TWRP, you must format data and wipe Dalvik, Cache, and System partitions. Flash the ROM