Yea as komorg mentioned, the update procedure has changed for 1.7. You now need to download the update file ON the ODROID-X2, save it to a folder on the SD card (sorry don't remember what the folder is called and hardkernels link is currently done), then go into android settings and do a software update. This new update procedure should work out better in the long run. I still haven't done it though.
Little snag on the build... I put all of the components on the double DIN radio cage, was going to power up the board to test JUST before I put it in the car, and now the Lilliput 669 has the dreaded white screen of death . Luckily I have another one in my car now, so i'll just have to swap it out. NO clue why the Lilliput died it hasn't even been powered on in over a week.