the ipod says it's locked for 23.965.478 minutes.
I tried backup using itunes and icloud it didn't work. and the home button is broken so I can't use the "pressing the buttons" tecnique
iPod touch, iOS 8
Place the iPod in Recovery mode using the instructions in my first reply on page 3 in this discussion. Then reestore via iTunes. The link opens to page 3.
Turn on without Home/Power Button
or
If you previously turned on FIndMyiPod on the iPod in Settings>iCloud and wifi is on and connected go to iCloud: Find My iPhone, sign in and go to FIndMyiPhone and use Remote Wipe to erase the contents of your device. If you have been using iCloud to back up, you may be able to restore the most recent backup to reset the passcode after the device has been erased.
You can also wipe the iOS device by installing the FindMyiPhone app on another iOS device and using that app to wipe the device.