Please do some reading... The thread about 5 down from the top of this page is mine stating aviv torrent files. It should have everything you need. The cure to whatever symptoms you have has most likely be described along with its solution about 100 times on here but I'll give you the quickest. Get a copy of test mode and a back up of what ever model for version of firmware you have put them on a freshly formatted SD card load into avic. Start engine, let avic boot into windows, go to explorer find the SD card copy backup, go back to explorers main page go to "myflashdisk" and paste files in correctly. This is the short least detailed version of your problem solver read through posts for real thorough wrote ups of splash screen restart