mobile

Hey guys ! I am using cm12 unofficial 5.0 lollipop ROM for i9500 for 3 weeks already . My phone started to act very strange and I strongly think it's the ROM who did it. Firstly, I had problem with charging and I changed the charging port with one brand new, now I have even bigger problems with charging and MOREOVER after few days after that my back and menu buttons stopped working, I'm done with CM . All I want to do is flashing any official ROM and never come back to cm. BUT LIKE IF THAT WAS NOT ENOUGH, Odin does not recognize my phone anymore. I have enabled the USB debugging and ofc I have Samsung drivers, it is not a PC problem, I am using same pc and USB cable to flash officialbrom as I did to flash cm ROM ! Help me guys I'm desperate and I hope it is not too late.