Format Data → type "yes"
If your network carrier drops after flashing, verify your APN (Access Point Name) settings under network options or re-flash the stock modem firmware via Odin. Conclusion
Wipe cache and restart. The first boot can take up to 15 minutes. Risks and Mitigation RMM State/OEM Unlock: The j730f custom rom
Better background process management helps squeeze extra screen-on time out of aging battery hardware.
Ensure your phone has at least 60% battery life to prevent unexpected shutdowns mid-process. Format Data → type "yes" If your network
Stability and purity. LineageOS is the grandfather of custom ROMs. The unofficial LineageOS 20 builds for J730F are rock solid. No gimmicks, no bloat. Just pure AOSP with minimal additions. If you want a daily driver that rarely crashes, choose LineageOS.
Which you want to reach (e.g., Android 10, 11, or newer)? Risks and Mitigation RMM State/OEM Unlock: The Better
The SM-J730F has a healthy custom ROM scene thanks to the Exynos 7870’s open-source support. For daily use, or Pixel Experience (Android 11) is recommended. Users seeking modern Android (12/13) can try Evolution X , but expect minor bugs. Always backup EFS before starting.