An update to iodéOS v3 has been made available by mistake for Samsung 9 series running iodéOS v2, but due to a change in the encryption method, this update requires a factory reset (we already communicated on this subject). This update has been withdrawn yesterday and the update to 2.10 proposed instead. This wrong update cannot be installed anymore through the updater since yesterday.
You won’t be able to recover your system, a factory reset will be required. The only thing you can do is to try to save part of your data, if your data partition is not encrypted. For this, you have to install the twrp recovery which can be found here: Download twrp-3.7.0_9-0-starlte.img.
To install twrp you need heimdall (Heimdall | Glass Echidna). On linux Ubuntu you can simply install it by typing:
sudo apt install heimdall-flash
Then, to install twrp, you must boot in Download mode (green screen) by pressing and holding Power + Vol down + Bixby, and typing in a command line environment:
heimdall flash --RECOVERY twrp-3.7.0_9-0-starlte.img
The device reboots shortly after finishing the flash. Before it reboots you must press and hold Power + Vol Up + Bixby to reboot into the recovery.
In twrp, go to “Mount”, then select the “Data” checkbox. If the checkbox can be selected, your data is not encrypted and you can save some part of your data (at least photos, downloaded files, …) by installing adb (https://www.xda-developers.com/install-adb-windows-macos-linux/) and typing:
adb pull /sdcard
We are very sorry for the trouble caused by our wrong manipulation on this update…