I still can’t get wifi/bluetooth, even after using the Lenovo Software Fix tool to reset to android (where wifi/bluetooth work well on it) and started the installation again from the beginning. I still have the last image of UT flashed and followed the instructions well. (+ and the command fastboot format:ext4 userdata works correctly now, no need to format through the tablet) Maybe I should try to reinstall with ubports (hoping not to back again into the bootloop problem) or use another image ? (Maybe for some unknown reason, this image is problematic for me ?)