2013 MacBook Air blocked
Hello,
I have a 2013 Mac Air with Catalina 15.
I cannot factory reset it, the CMD touches CMD+R are not working.
I installed a tool to resize the partition in order to free up the space (it was my last solution).
Unfortunately I touched the main and unique disk.
Now when I restant the Mac there is a black screen with a file icon and an interrogation point appeering and dissapearring.
I repeat, no combination of touches is working.
I have no data to save, everything is on an external drive.
I don't have the possibility to bring it in an Apple Center as I am abroad actually, in Africa.
Any suggestion to solve my issue are welcome!
You are my last Hope, I rely on you!
Thank you for your assistance
[Re-Titled by Moderator]
MacBook Air 13″, macOS 10.15