my gnex suddently shut down and didnt come back. weird thing is when i plug it to charge and let it boot sometimes its booting, but when i put my sim it shuts down.. with only battery, nothing happens, doesnt boot. first i thought its battery fault but when i plug it to computer without battery, it says unknown device per 2 sec. also i could able to flash factory image with odin, download mode works but other than that it wont boot normally. tried omapflash but i couldnt get my phone recognized cause of this unknow device popups. any help? i dont think its emmc fault couse it sometimes boots with charge cable and i culd able to flash with odin..