What is your A13 5G? (e.g., SM-A136U, SM-A136B) What carrier do you use?
Reboot your device and enjoy your new custom ROM. samsung a13 5g custom rom
Flashing a custom ROM permanently trips Samsung Knox. , even if you return to stock. The physical e-fuse is blown. What is your A13 5G
The first boot can take up to 5–10 minutes. Do not interrupt the process. Troubleshooting Common Issues Flashing a custom ROM permanently trips Samsung Knox
As of now, there are no fully stable, daily-driver custom ROMs for the Samsung A13 5G like LineageOS 20 or 21. You will find proof-of-concept builds on XDA Developers forums, but most suffer from:
A custom ROM is a complete, aftermarket operating system built from the Android Open Source Project (AOSP). Unlike the stock firmware (One UI) that comes pre-installed, custom ROMs offer a pure, Google-like experience or a heavily customized one, free from manufacturer and carrier bloatware.