In conclusion, the world of custom ROMs for the Samsung Galaxy Tab S3 SM-P585Y represents a classic technological trade-off between potential and stability. For the adventurous enthusiast who values the latest Android features and security over the S Pen’s full functionality and 4G reliability, a custom ROM or GSI can transform a forgotten tablet into a viable daily driver. The performance improvements and extended software support are undeniably attractive. However, for the average user who relies on the tablet’s core features—the S Pen for productivity, the LTE modem for connectivity, and overall device stability—the risks and sacrifices are likely too great. The ultimate fate of the SM-P585Y, therefore, rests not on the hardware's capability, but on the user's willingness to navigate the perilous yet rewarding path of custom firmware. Until a truly stable, fully featured ROM emerges, the SM-P585Y remains a device best appreciated for its original merits or repurposed for offline, single-use tasks.
: Transition from outdated Android 8.1 Oreo to newer versions like LineageOS 20 (Android 13).
This is one of the most recent stable paths for "reviving" the tablet, allowing for the installation of modern apps from the Play Store.
Samsung Galaxy Tab A 10.1 (2016) with S Pen (SM-P585Y) , upgrading to a custom ROM can revive an older device stuck on official Android 8.1. Most development for this specific model is shared with its non-S-Pen LTE sibling, the (codename: Available Custom ROMs LineageOS 21 (Android 14)
As of late 2023 and into 2024, the custom development scene for the SM-P585Y (and its Wi-Fi counterpart, the SM-P580) has significantly slowed down. The device is considered "legacy" in the modding community. While there was a time when AOSP (Android Open Source Project) ROMs were plentiful, the stability of those builds has always been a point of contention for this specific model due to driver and proprietary file issues.