I recently changed my phone run time from Dalvik to Art not knowing what the hell I was doing. Now its stuck on Optimizing app 1 of 4. I connected to my PC and my PC reads it as a mp3 player so i can't do much with it. I also cant put into recovery mode or do a hard reset. Only thing I can do is go into some menu called "Hardware key control mode" but canceling it or turning it on or off just sends me back to the optimizing apps menu. Is it not fixable? my phone is an LG Optimus F60. I have seen a thread about this but the person was able to go back into their phone. I am not able to go into my phone. Also the Optimizing app 1 of 4 would change from 1 of 4 to 2 of 4 or 3 of 4 every time i would remove my battery but it would never go to 4. Please help!