iPhone X black screen with apple logo continues flashing

This screen means the device needs to be restored. Connect to a computer running the current version of iTunes and attempt the restore. If it will not restore, it should return an error code. If so, report that code for assistance.

KaledAE,

See if this helps:

If your iPhone, iPad, or iPod touch won‘t turn on or is frozen

Good luck.

Thanks a lot, I’ve restored the phone, update was not succ

What do you mean by that?

If you were able to restore the phone, it would have updated if necessary. If the phone did not update or restore, then you should have received an error message. If so, what was that?