Download RecBoot from
http://jaxov.com/201...mac-os-x-linux/
And then Connect iPod to computer, allow drivers to install ( may take 5 minutes).
Then when itunes shows ipod in recovery mode window (may need to open iTunes and reconect iPod.
Then shut iTunes and press exit recovery mode, if that doesn't work press enter recovery and wait for iPod to reboot,
After iPod reboots press exit recovery and voila you "should" have a fixed iPod
OR
1. Open up iTunes, plug in your iPod Touch/iPhone to the CPU's USB port. Turn on your CPU's speaker and make sure it is loud enough that you can hear it.
2. Hold down the
Home button (top left for iPod Touch and top right for the iPhone with the screen facing you) and the
Power button (located on the front bottom of your iPod Touch/iPhone) simutaneously, until the screen goes black and the device turns off. (past the red slider/slide to power off screen)
3. Now let go of the
Power button, but continue to hold the
Home button. Your iPod Touch/iPhone should have turned off and the screen should not be on.
4. After around ~10-20 seconds, you will hear a noise (beep/ding) from your CPU as if it had just recognized a new hardware device, now iTunes should recognize it in DFU mode.
5. After iTunes recognizes the iPod Touch/iPhone, let go of the
Home button otherwise it will go into
recovery mode and you will have to do the entire DFU process over again.
6. You will know when you have put your iPod Touch/iPhone correctly into DFU mode when the display is blank and that you do not have anything on your device.
Then Press Kick out of recovery mode with RecBoot.
Also in regards to not be able to sync download app sync, from the installous resources in cydia, and if that doesn't work then download iFunBox from
http://www.i-funbox.com/
And copy files from to and from that.