Revive Your Galaxy A8 2018: A Comprehensive Guide to Custom ROMs (2026 Edition)
Trying to install GSI on a Samsung A8 (2018) - e/OS community
A stable connection between your PC and phone is critical during the flashing process.
In TWRP, go to > Advanced Wipe . Select Dalvik/ART Cache , Cache , System , and Data . Swipe to wipe.