Bug after android 9 update

[Kkhouloud]

Hey,
I received this morning a notification to update the android 9 one UI for my Galaxy A40.
After the installation, the phone went to restart, as usual. However now it's stuck on the restart page with just the Samsung logo on the screen.

Things I already tried: force restarting it with the side buttons, going on the recovery mode and clearing off the cash.

Any solutions?
Or at least how can I retrieve my files before resetting the phone to factory settings?

 

[Hadron]

It's unlikely that you can save your files. If it won't boot into Android and you don't have a custom recovery then there is no way of accessing them (the official recovery module doesn't provide any way of doing this).

You could try booting into safe mode (will involve pressing some button combination while restarting the phone), but that's a very long shot: since what safe mode does is disable user-installed apps and this started with a system update I don't think it at all likely to work.

Otherwise I'm afraid I can't even promise that a factory reset will fix it. All that does is erase user data and settings, so if the problem is an incompatibility between the updated software and some of your data then that will fix it. But if the problem is that something went wrong with the installation of the update a reset won't help: if that's the case then you'll need to download a new set of software (e.g. from sammobile.com) and reflash the phone.