Android 16.0.1 for Teracube 2e 2nd Batch Emerald (SN: 2021)

Teracube 2e
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#1

NOTE 1 : These builds ONLY WORK for the Teracube 2e 2nd batch (SN: 2021) Emerald, and not 1st batch (SN:2020). Please read the differences here carefully and install accordingly.
If you are looking for SN:2020 T2e (Zirconia), you can find it here.

NOTE 2: All firmwares released for Teracube 2e (2020) & Teracube 2e (2021) don’t pass Play Integrity this includes Android 10/11/12/13/14/15. We’ve explored all options, but implementing Remote Key Provisioning (RKP) a strict requirement for Strong Integrity is simply not feasible for us right now.

NOTE 3: It is expected for the device to stay longer on Teracube logo for the first time after installing the upgrade & The device may respond slow for some time after upgrade, apps are optimising in background. We recommend waiting 15min on idle post upgrade before using it for an optimal experience.

We are thrilled to share our first stable (16.0.1+736a3f8) Android 16 for Teracube 2e 2021 as it shipped out with Android 11 all the way to Android 16 :wink:

:tada: What’s New?

:iphone: Android 16 features and improvements
:lock: Security patches updated to 2025-10-05
:zap:Improved system perfomance
:battery:Enhanced battery optimization
:sparkles:Updated system apps

:inbox_tray:Steps to Upgrade:

  1. Download the upgrade zip file directly on the phone (or transfer the zip to the phone).
  2. Goto Settings > System > Updater (or Teracube Updater)
  3. Click top-right 3 dots > Local update or Click on the top-right File icon
  4. Tap “Internal storage” and browse to Downloads or wherever you transferred/downloaded the update zip file.
    Note 1 : If Internal storage does not show anything, then reboot the phone.
    Note 2 : Do not download the update to SD card.
    Note 3 : Before you update, make sure you have at least 6GB of free storage and your battery is at least 50% charged. This will help ensure a smooth update process.
  5. Select the file and continue the update process.
    Note: If the Updater closes or crashes, then try again.
  6. Upgrade process will take a while.
  7. Reboot the phone after the updater says “Update installed”.
  8. First boot after upgrade can take several minutes.

Do note, after the update, you’ll need to re-enroll your fingerprint and some users have reported that they lose their launcher - icon and widget arrangement. We’d suggest you take a screenshot of your homescreen before performing the update!

Let us know how it went and post your questions/feedback here. Please keep the comments related to this update itself.

If you experience any errors/issues, you can install the original factory software using the automated installer or SP Flash.

Android 15.0.1 for Teracube 2e 2nd Batch Emerald (SN: 2021)
#2
#3

Update all in all worked good.
Unfortunatly WPA3 is no longer supportet!
Or at least I could no longer connect to my WLan (fritzbox), it was set to “WPA2 + WPA3”.
After I changed it to WPA2 only it worked again.

Edit: it resets the settings configuration. So if you app crashes (Duolingo, audible) you have to turn background utilisation on in the app and set it to unlimited.

1 Like
#4

Wow just updated two phones no trouble at all. One question is there away to move the search bar to top of screen instead of bottom? Thank you

#5

There’s a option to disable it in launcher settings

#6

For some minutes after Upgrade I had normal wifi access. Then it reconnected often and now I have no more wifi (all connection attemps end up with “connection error”). Downgrading to WPA2 din’t helped me.
Acess points: fritzBox and MikroTik

#7

Where and how do I move search bar to the top?

#8

You could try this. It’s what I did before disabling wpa3

Settings - System - Reset options - Reset Bluetooth & WiFi

#9

Jannic, thank you for your hints.
Manually configuring wpa2 worked once. Now even after wifi reset and manual configuring wpa2 I have no connection.
Hope the company finds a solution :frowning:

#10

Before updating to 16, if any of you are on the last version of 15 (I think 15.0.2) could you tell me the 7 characters after the +? 15.0.2+XXXXXXX, the characters in the place of the Xs. Thanks.

#11

Thanks for the info. I had the same issue. Switched my Wi-Fi access point’s security mode from WPA2/WPA3 to WPA2 only and the phone could then connect.