OTG problem

Jan 6, 2014
I've a problem with OTG, and i'm looking to solve it.
I've just changing my usb flex cable connector and I can charge my battery now and connect to pc.
When i put a usb stick on my OTG cable , my m2a doesn't recognize it.
I used those usb stick and OTG cable on an SG2 and they work.
before I install the Rom 4.4.4 , I used an older one 3.9.6 or 3.11.22 I don't remember.
The OTG was working before changing ROM and usb flex cable.

Does anyone have an idea?