So I was calibrating the stepper drivers on my Ramps 1.4 board when I touched the stepper driver with my screwdriver by mistake, That melted my Stepper motor connector and fried the voyage regulator (I tested it, making ),making the LCD contrast weird and the SD reader not working. So I disconnected the D1 diode and I connected 5V from my power supply to the VCC pin on Ramps in order to avoid using the bad voltage regulator , and It worked perfect again, the SD, the LCD and USB connection with Cura. So I replaced the melted connector on my stepper motor and put a new stepper driver. But when I turned the printer on, the LCD showed something weird, there was a loud buzzing sound and something smelling burnt, So I disconnect the stepper motor and driver, Turned it on again and nothing showed on the display. I separated the Arduino to test it , and It doesn't turn on by USB. I could get a new one very cheap but I dont know if my Ramps is bad and will damage it again. Thank you
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