You can use an unofficial TWRP 3.7.1_12 to manage backups and flash files.
Stability and battery life. LineageOS is the grandfather of custom ROMs. For the SM-X200, unofficial builds are circulating on XDA Developers forums. It strips away Samsung’s services, replacing them with a clean launcher, superior privacy controls (Privacy Guard), and significantly less RAM usage. sm-x200 custom rom
: Use the command fastboot flash system .img . You can use an unofficial TWRP 3