I am unclear what motors you are having problems with. In your first post (the topic) you use plural (motors) but later and in your photos you just talk about one motor. In short, I would like to understand if;
Is it correct that all other motors are working except for the X axis?
Is it correct that you tried to swap the working extruder motor to the x axis and in that position and loaded it does not work?
Further -
In your Marlin config file you set the steps per mm to 53.33 - This is wrong, it looks like you have a 20 tooth pulley so the correct setting for that is 80. This should however have made it easier, not harder for your stepper.
Try to move a working motor at the same time as you are trying to move the not working X axis. See if that makes the working motor stop also [1]
Have you tried swapping the driver (A4988 ) - So take the working extruder driver (A4988) and put it in the x-axis place and see if that works?
Are you sure that the extruder, that you conclude is working, is actually really working when loaded?
Try to leave the extruder connected as extruder but put it to drive the X and see if it moves when you ask it to "extrude" - Remember to adjust step size.
How are you testing the movement? Try to use this command G1 X5 F3 - That will make it go 5 mm in the X direction with a feed of of 3mm per minute. That is very slow. If it can't move with that, it can't move.
Try to block one of the working motors and see how that shakes when it is blocked. Now compare that to how your X is shaking when it is blocked. If the motor is getting full power then it will feel roughly the same. If it is a circuit problem it can (but not necessarily must) be different.
And thats it - That sounds like a lot of tests in all sorts of directions but each test have a purpose. For example the test in [1] shows us if the error is bringing down the entire system (then it is probably RAMPS or Arduino or power supply and not software).
Finally - A good advice - You are probably a little stressed about this right now, and it is in that state of mind that I myself start to do not so smart things. Like forgetting to turn off power before moving around cabling. Remember to remove both USB and 12V power when doing changes. I had to burn one Arduino before I learned that, not recommended.
Is it correct that all other motors are working except for the X axis?
Is it correct that you tried to swap the working extruder motor to the x axis and in that position and loaded it does not work?
Further -
In your Marlin config file you set the steps per mm to 53.33 - This is wrong, it looks like you have a 20 tooth pulley so the correct setting for that is 80. This should however have made it easier, not harder for your stepper.
Try to move a working motor at the same time as you are trying to move the not working X axis. See if that makes the working motor stop also [1]
Have you tried swapping the driver (A4988 ) - So take the working extruder driver (A4988) and put it in the x-axis place and see if that works?
Are you sure that the extruder, that you conclude is working, is actually really working when loaded?
Try to leave the extruder connected as extruder but put it to drive the X and see if it moves when you ask it to "extrude" - Remember to adjust step size.
How are you testing the movement? Try to use this command G1 X5 F3 - That will make it go 5 mm in the X direction with a feed of of 3mm per minute. That is very slow. If it can't move with that, it can't move.
Try to block one of the working motors and see how that shakes when it is blocked. Now compare that to how your X is shaking when it is blocked. If the motor is getting full power then it will feel roughly the same. If it is a circuit problem it can (but not necessarily must) be different.
And thats it - That sounds like a lot of tests in all sorts of directions but each test have a purpose. For example the test in [1] shows us if the error is bringing down the entire system (then it is probably RAMPS or Arduino or power supply and not software).
Finally - A good advice - You are probably a little stressed about this right now, and it is in that state of mind that I myself start to do not so smart things. Like forgetting to turn off power before moving around cabling. Remember to remove both USB and 12V power when doing changes. I had to burn one Arduino before I learned that, not recommended.