iodéOS 2.10 → 2.19 update don't work

I have yet the iodé 2.20 new installed / flashed. Unfortunatelly all my data and apps are lost.
Yet iodé 2.20 is installed.

Teracube 2e (emerald)
Ubuntu 22.04.3 LTS

By the following instruction it is to consider what is making on Ubuntu/Linux or Teracube.

How to flash Teracube

Please see the shortened manual instructions in a comment below ↓.
Here the old one:

Summary

2E 2022 batch (emerald)

connect the device via USB with the PC (detected in iodé OS)

  1. Unlock OEM in developer settings

TERACUBE
not necessary.
shutdown iodé

  1. Activate the FASTBOOT mode

TERACUBE
“press Power + Vol+to come into the boot manager is very difficult.

Select Boot Mode:
[VOLUME_UP to select, VOLUME_DOWN is OK.]

[Recovery Mode]
[Fastboot Mode] <<==
[Normal   Mode]

Press: VOLUME UP (select)
Press: VOLUME DOWN (OK)

=> FASTBOOT mode...

LINUX (check the USB connection)
open Terminal
type: lsusb
A entry must be displayed like:

Bus 002 Device 033: ID 0c4b:201d MediaTek Inc. Android
  1. Type adb reboot bootloader

skip this point

  1. Type fastboot flashing unlock

LINUX
open Terminal
type: fastboot flashing unlock (maybe install fastboot before)

TERACUBE

Unlock Bootloader?

If you unlock the bootloader, you will be able to install custom operating system software on this phone.

A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.

To prevent unauthorized access to your personal data, unlocking the bootloader will also delete all personal data from your phone(a "factory data reset").

Press the Volume Up/Down to select Yes or No.

Yes (Volume Up):Unlock(may void warranty).

No (Volume Down):Do not unlock bootloader.

Press: VOLUME UP

Select Boot Mode:
[VOLUME_UP to select, VOLUME_DOWN is OK.]

[Recovery Mode]
[Fastboot Mode] <<==
[Normal   Mode]
=> FASTBOOT mode...

do nothing. respectivelly no reactions by key press.

  1. Download fastboot package for your device (latest file iode-[…]-fastboot.zip):

iode-2.20-20240218-emerald-fastboot.zip
Download to the Linux PC

  1. Unzip fastboot package and execute flash-all.sh (linux) or flash-all.bat (windows)
    LINUX
    Unzip iode-2.20-20240218-emerald-fastboot.zip
    open the directory in terminal.
    type: sh flash-all.sh
    The installation / flashing runs in the Linux terminal.
    A FASTBOOT screen on the Teracube. → do nothing!

LINUX Terminal:

...
Finished. Total time: 368.500s
Reebooting                      OKAY [0.001s]
Finished. Total Time: 0.059s

TEARACUBE
is rebooting
the initial start screen is displayed

Please see the shortened manual instructions in a comment below ↓.


Unfortunatelly the FM Radio still don’t work, because iodé is based on LineageOS:

[Teracube 2e 2nd Batch (SN: 2021)] LineageOS 21.0 [emerald]

What does not work?

  • FM Radio

Teracube community: [Advanced Users Only][Teracube 2e 2nd Batch (SN: 2021)] LineageOS 21.0 [emerald] - Teracube 2e - Teracube Community