Problem with SDA and SLA pins

[Antonio]

I’m connecting an LCD screen with an I2C driver to the controllino mega. A few months ago it was working fine, and now there’s no signal being sent to the LCD. It turns on fine, but no text shows when connected to SDA or SLA pins. I also tested 2 of the same LCDs with the same driver on an Arduino Mega and it worked fine. I also tested the I2C detector and it got stuck scanning, not even printing if one was connected or not. The scanner worked fine for the driver and screen on the Arduino Mega. Even with nothing connected to the X1 pins on the controllino mega it wasn’t running. Are the SLA and SDA pins broken? Is the I2C connection busted? Any suggestions for work around? Any ideas for how it broke?

Thanks

[Lukas]

Continued here.