Hello you can help .... my device is a Samsung J7 and if he read the OTG ... but I sent a legend to do something to send all power to another device but not wanting it away.
And after that I stopped reading my USB OTG ...
It is noteworthy that since the USB probe on another device and works perfectly. We greatly appreciate it if you could help me ... I want to avoid the truth send my smartphone with a technician or warranty ... ... uu