# Upgrade android teracube 2e

**URL:** <https://community.iode.tech/t/upgrade-android-teracube-2e/4726>\
**Category:** System and Apps\
**Created:** [18 October 2024 18:23 UTC](https://community.iode.tech/t/upgrade-android-teracube-2e/4726 "2024-10-18T18:23:19Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![iodysseus](https://community.iode.tech/user_avatar/community.iode.tech/iodysseus/32/2488_2.png) [@iodysseus](https://community.iode.tech/u/iodysseus)\
**Post date:** [28 September 2026 13:19 UTC](https://community.iode.tech/t/upgrade-android-teracube-2e/4726/18 "2026-09-28T13:19:07Z")

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> [@Sax](#):
>
> I have the Teracube 2e 2020 version, where, strangely enough, the bootloader can no longer be locked even though it’s the same hardware.

That’s really strange, because officially, the bootloader can and should be unlocked.

Teracube 2e (2020) “zirconia” Mod. Serial Number starting with 2020 (ex: 202011T2Exxxxxx)

If you can’t unlock the bootloader using the standard command `fastboot flashing unlock`, you can try unlocking it using the MTKClient tool. The MediaTek Helio A25 is supported by the MediaTek Flash and Repair Utility “MTKClient.”

[Unlock the bootloader](https://doc.e.foundation/devices/zirconia/install/)and [install AOSP 16](https://doc.e.foundation/devices/zirconia/install/)on a Teracube 2e (2020) “zirconia”

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