Sm-t705 Custom Rom Official Before starting, ensure you have: zip file (e.g., Open GApps ) if you want the Play Store; choose ARM, Android 10.0, and "Pico" or "Nano" for the best performance. Magisk zip (optional) if you want root access. Installation Guide sm-t705 custom rom 8/10 Based On: LineageOS 18.1 In TWRP: