The development community for the XA1 is smaller than for the "Z" or "XZ" series, but there are several stable options available on forums like XDA Developers. 1. LineageOS (Unofficial)
While Sony’s stock skin is relatively light, it still includes proprietary apps and background services that can drain the aging MediaTek Helio P20 processor. Benefits of Custom ROMs: sony xperia xa1 custom rom
You must request an unlock code from Sony’s official developer website. The development community for the XA1 is smaller
If your ROM doesn't include Google apps (Play Store, Gmail), you will need to flash an OpenGApps package immediately after the ROM. Benefits of Custom ROMs: You must request an
Use Fastboot to flash the TWRP image file to your recovery partition.
Transfer the ROM .zip file to your SD card, select "Install" in TWRP, and swipe to confirm.
Ensure your phone is at least 60% charged to prevent it from shutting down during the process. How to Install a Custom ROM on Sony Xperia XA1