Samsung devices ship with locked bootloaders. To flash custom software, you must unlock it.
Due to the Exynos-like variant confusion (P585Y is Snapdragon), ROMs are limited but active: sm-p585y custom rom
⚠️ Note: Do not use ROMs for
gts3lwifi(SM-T820) orgts3llte(Exynos) – different partition layouts. Samsung devices ship with locked bootloaders
Here is the standard workflow for installing any SM-P585Y custom ROM. ⚠️ Note: Do not use ROMs for gts3lwifi