When I connect my Luxorpart LCD display 2x16 serial I2C to my Arduino Uno, the LCD powers up for a second, then both the LCD and the Arduino power down. As soon as I unplug either the 5V or ground, the Arduino powers up again. This happens regardless of whether any code in loaded into the Arduino or not.
I believe I’m connecting everything correctly:
GND <—> GND
VCC <—> 5V
SDA <—> A4
SCL <—> A5
I’ve Googled what the issue could be but no-one seems to have reported this issue previously. Could someone please advise if the problem is with the I2C, the LCD, the Arduino, or all three?