I tried with sudo adb shell and it works with most of my apps!! Thank you very much!!

In fact, I now got GIMP, VLC and Firefox in fullscreen, only Libre Office seems to crash all the time...

Its' working!!! Thanks everyone!!!

Seems to be working indeed as I have the recovery mode again!!

@lakotaubp I'm going to try! And I will let you know.

@lakotaubp Btw I already did this and the update downloads indeed, but once I change the channel nothing happens...

@lakotaubp I can't! When you use the installer, you have to have access to the recovery mode and I can't!

@bodow I didn't change anything. The only thing I did when I still had access to recovery mode was swiping the cache partition. But I don't think it's the cause of my problems either...

I tried another sudo system-image-cli -v -p 0 but I had a TimeoutError in return! I'm afraid my phablet is broken ideed...

No. I'm not sure I get what you advise me to do. Do I have to move something to /var/cache/apt/?

Well, I can't even post the screen capture I've just done with Morph Browser. Boring!!

No. I checked my updates in the parameters and I saw the OTA-7 was ready to be installed. I've been installing it right now but when I reboot nothing will be installed:

Hi everybody,
I got an Aquaris M10 FHD working with Ubuntouch 16.04 and since I received OTA-7, I'm unable to update the device. More precisely I received the update but I can't install it because everytime I click the installation button, the phablet reboots but nothing changes and I'm still stuck at OTA-6.
To add insult to injury, I can't access the recovery mode anymore, even with the sudo reboot -f recovery command... so I can't reinstall Ubuntouch with the Ubports installer!! And I can't even reinitialize it!!
The only thing I did these last few days is entering a sudo mount -o remount, rw / command but I'm doubtful it's the cause of my problems.
Could anybody here help me out with this, please?