Gpio ir not working any more

Hello to all,

Have some problems with gpio ir receiver. I was messing with adding fan control true gpio with this tutorial Raspberry Pi automatic GPIO fan, but after reconnecting ir receiver to gpio, it is not working any more. I reinstalled osmc, tested lirc with irw command, but Rpi is not receiving any commands from remote.
Is there any way to reinstall gpio drivers, test gpio or something like that… Have Rpi2, logitech harmony 1100, enabled gpio in osmc settings selected mce remote, everything as before, but no luck.
Any help will be great.