Activate Debug usb with broken screen ? and adb connection without first connexion ? - Samsung Galaxy S7 Questions and Answers

Hi everyone,
Yesterday I broke my Galaxy S7 screen in the building's stairs while leaving home.
I want to save all the stuff I have on it, but recently I installed a new stock rom and forgot to tick in the developer menu "usb debug".
I tried an adb connection but the phone is unauthorized...
I read on some french board that I could flash a special kernel (with debug usb ON) to be able to get an adb connection. but that I will be blocked because I never accept any adb connection while having my screen working....
Is there any solution ?
I need help to hopefully resolve my issue.
Have a nice end of day.

You can connect an USB keyboard/mouse. Maybe an USB-hub works too so you can connect a PC and keyboard at the same time.

I was able to unlock my screen but I can’t access to my storage because I have to enable the sharing storage...
It seems there is no solution.

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USB OTG+ USB mouse
Try to use USB OTG+USB mouse, that did the trick for me
no display whatsoever... so having a mouse isn't going to help me sadly! unless i can get the screen displayed on a computer monitor or something?

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Did you enable USB debugging? Did you enable MTP when connected to a computer? Is the computer a trusted device?
audit13 said:
Did you enable USB debugging? Did you enable MTP when connected to a computer? Is the computer a trusted device?
Click to expand...
Click to collapse
must have at some point because i connected it to a computer in the past, no idea and i dont know how to, and i dont know.
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Hello guys,
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I hope this is not a cross-post; I've read a few other guides and suggestions on this forum already but my problem seems to be the opposite of what many people have.
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Rafael

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