ITunes could not connect to the iPod touch because an invalid response was received from the device.

The iPod Touch is a type of iPod that features a touch screen and can function as both a portable media player and as a pocket computer.

It is possible to password protect your iPod Touch so that you will have to enter a password every time you want to unlock the iPod Touch screen.

If you repeatedly enter the incorrect passcode, your iPod Touch will become disabled.
To unlock a disabled iPod Touch, you need to sync your iPod Touch device with iTunes on your computer.

Attach the iPod Touch data cable to the bottom of your iPod Touch device and attach the other end of the data cable to an available USB port on your computer.

Open iTunes on your computer and then select your iPod Touch device from the list of available devices on the left side of the iTouch window.

Click the "Restore" button.

If you have previously backed up your iPod Touch, you can choose to restore the device to the last back up or any saved backup.

If you have never backed up your iPod Touch, this process will restore your iPod Touch's factory settings.

Wait while iTunes syncs with your iPod Touch and restores the device.

iTunes will prompt you when this process is complete.

or
A hard reset restores your iPod Touch to its original factory settings.
This is useful when your iPod Touch is disabled and won't turn on or off, but all your data is erased.

Luckily, you can restore your data with iTunes after you've performed the reset.
Once you've performed the reset, your iPod is wiped clean and iTunes prompts you to restore the settings from your last sync.

Plug the iPod into your computer and wait at least 10 minutes.
This allows the battery to recharge in case it has drained.

This could fix your disabled iPod, if the problem was caused by a dead battery.
Click "OK" if your computer opens a "Connect to iTunes" alert box.

Depending on your version of iTunes, the message may indicate the iPod is in "recovery mode" and you need to restore the device.

ITunes opens and resets your iPod for you.
Unplug the iPod from your computer if you don't see the "Connect to iTunes" alert box.

Make sure the iPod is charged before you attempt the hard reset.
Press and hold both the On/Off/Wake button and the Home button on your iPod.

Keep the buttons pressed.
Wait for the Apple logo to appear, it may take 10 seconds or longer.

When you see it, release the On/Off/Wake button but keep the Home button pressed.
Release the Home button when you see a picture of a USB cable with an arrow pointing to the iTunes logo.

Plug your iPod back into the computer.
The iTunes "recovery mode" message will appear.

Click "OK" to complete the reset.

Step 1: Install iTunes to your computer
Step 2: Connect, via USB, your iPod Touch to your computer.
Step 3: Open iTunes and wait for iTunes to see your device.
Step 4: Click on your device in iTunes.
Step 5: Click 'Restore iPod'

Your iPhone, iPad, or iPod touch may not appear under Devices in iTunes after you connect it to your Windows PC. If you see your iPod in My Computer (Windows XP) or Computer (Windows Vista, Windows 7, or Windows 8) but not in iTunes under Devices, try these steps. Start at the top and work your way through the steps until iTunes recognizes your iPod. http://mhelpdesk.com/field-service-management-software/

After updating OS, you may receive "iTunes could not connect to the iPhone because an invalid response was received from your device".
iTunes Could Not Connect to the iPhone iOS 10 iTunes Invalid Response...
Here are the best four methods for you to refer to fixing this iTunes could not connect to the iPhone invalid response problem, via updating iTunes and iPhone, uninstalling and reinstalling iTunes, and using iPhone alternative.

Plug the iPod touch into the computer with the USB Dock connector. Once it is connected to the computer turn off the iPod touch by holding the power button down on the top of the device until you see the "Slide to Power Off" on the screen. Power Off the Device. Once the device is off (and still plugged in) hold down the home button and keep holding it while pressing the power button to turn on the device. Continue holding the home button until you see the screen on the iPod Touch Say "Connect to iTunes" at which point you should launch iTunes on your PC/Mac if it has not already loaded.

get the cord to the computer/ipod plug it in then there you go

Try a hard reset of your device:

To reset the iPhone or iPod Touch, press and hold down the Sleep/Wake button and the Home button simultaneously at the same time for at least ten seconds, then the LCD display will clear and the Apple logo appears on the black background. When Apple logo appears, reset is done.


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that means when you connect your ipod there;s something its suppose to when you plug it it does it still charge