"The people that are getting the download could post that file for everyone else. They would need root access then look in the cache directory under the system directory. /system/cache. There should be a file that should be about ~143 MB that should be the Jelly Bean update. You would have to look for it after the download finished but before you ran the update. Just copy the file to the "internal sdcard" for safe keeping. You could upload it to dropbox or some other cloud stroage for other people to download and use at there own risk of corse."