Many users flash a GSI (Generic System Image) or an unofficial build and immediately fail verification. The two main reasons:
The "gold standard" for reliability, though it requires manual GApps installation. Feature-Rich smx200 custom rom verified
No review is complete without the bugs. While the SM-G981 is mature, some issues persist: Many users flash a GSI (Generic System Image)
Don’t trust a forum post blindly. Here is how you verify any SMX200 custom ROM before flashing: smx200 custom rom verified
fastboot flash system .img (This installs the new ROM). fastboot -w (This wipes user data to prevent bootloops). fastboot reboot
This is mandatory. Samsung makes this relatively easy in Developer Options, but it will wipe all your data.