Help Android USB port problem

[Pavlex4]

I have Samsung galaxy s3 neo.
OTG cable and otg ir remote device worked fine and after few days it won't detect my otg cable and otg ir remote device until I pull otg cable little up and hold it and some time when I connect otg cable it says usb connector connected and usb connector disconnected and repeat that many times.
How to fix this?

 

[Hadron]

Well if you have to hold the connector in a particular way to make it work that leaves 2 possibilities: the OTG adapter is damaged, or the USB socket is. Check for any dirt that might be blocking a contact (use a soft brush or an air blower to clean it - a hard object could damage the contacts) - you might be lucky and it be something like that, but if I'm honest this doesn't sound likely to me. Otherwise though you can only hope it's the OTG cable that's failing rather than the USB socket, because that's much cheaper to fix.