CustomDroid
Teracube

Teracube 2s (2025)

Mediatek Helio G36 (MT6765V/XBA)released 2025up to android 16latest android is 17
ro.product.devicesapphire

also sold as Teracube 2s

Codename shared with another phone. sapphire is also the codename of the Redmi note 13 4G / NFC. Codenames are only unique per manufacturer, so before flashing, check that a build names the Teracube 2s (2025), not just sapphire.

Actively maintained

Released 2025, newest ROM build 1 month ago (1 ROM still current). A phone that still gets updates keeps going long after its manufacturer stops.

Hardware

SoC
Mediatek Helio G36 (MT6765V/XBA)
CPU
Cortex-A53
GPU
Imagination Technologies PowerVR Rogue GE8320
Architecture
arm64
RAM
4 GB
Storage
64 GB
Screen
6.1" · 1560x720 · HD+ IPS LCD
Battery
4000 mAh (removable)
Released
2025

Specs from /e/OS documentation (CC BY-SA 3.0).

ROMs · 01

The Teracube 2s (2025) (codename sapphire) has 1 tracked custom ROM on CustomDroid — including /e/OS, running up to Android 16. Each listing links to the project's own download and install guide, and was last checked against the projects' catalogues on 21 Sept 2026.

RSS feed — subscribe to get new Teracube 2s (2025) builds in your reader · JSON

Before you flash

Flashing generally means unlocking the bootloader, booting a custom recovery, wiping, then installing the ROM. Exact steps differ per device and ROM, so follow the Install guide for the one you pick, and back up first. Check what can break (banking apps, DRM, carrier features) and how to get back to stock before you start. Why flash a custom ROM · All guides

This is a MediaTek device, so on Windows you'll want the MediaTek USB VCOM (preloader) driver before your computer will see it in fastboot. Which USB drivers you need.

Timeline

  1. Sept 2026
    /e/OS first tracked

Dates show when CustomDroid first indexed each ROM for this device, not when support originally launched.

ROM availability and links come from each project. CustomDroid indexes builds, it doesn't mirror them — always download from the official project, verify the file's hash/signature, confirm it matches your exact codename, and back up before flashing.