I have accidentally locked my 2010 ipod nano and i have tried every sensable combination that i have ever used. I did not steal it and asking to figure out someone elses combination.

No Number but try this:
Screen Lock" is provided by the iPod nano, iPod (5th Gen), and subsequently released full-size iPod, iPod nano, and iPod touch models. Earlier iPods, and iPod shuffle models, do not offer this feature. In the Apple Support Site, Apple notes that the "Screen Lock" function:
Allows you to set a 4-digit combination to prevent someone else from using your iPod while it is not attached to a computer. When an iPod is locked, you must enter the combination to unlock the screen. This feature is different from the Hold switch in that the Hold switch only prevents iPod from turning on accidentally -- not keeping snoops out. Screen Lock only locks users out of the user interface. It does not encrypt data on your iPod. For example, if you use Screen Lock and then connect your iPod to a computer, you'll be able to manage music on your iPod with iTunes and access all data on it in disk mode (contacts, notes, and any other files you have stored on the iPod). This support document also provides additional information on locking and unlocking the iPod. According to Apple, if you have forgotten the code, you can unlock the iPod by doing the following:
Connect your iPod to the primary computer you use it with (the first one iPod synced with), and open iTunes. When you disconnect iPod from the computer, it will no longer be locked. If you can't unlock iPod using either [the code or connecting it to the computer you use to manage its songs]. . . you can restore your iPod to factory settings using iPod Updater. Please note that this will erase all data on your iPod. Afterwards, you can add your music and data back to your iPod. If you want to change the primary computer that your iPod is associated with, do this: 1. Restore your iPod. Warning: The restore process cannot be undone. All of your songs and files will be deleted. Always make a backup of your important data. 2. Connect your iPod to the computer that you want to be the primary computer. 3. Open iTunes and synchronize. Apple also notes that company "representatives cannot unlock an iPod if you forget your combination. If you can't unlock your iPod and you don't have access to the primary computer, your only option is to restore the iPod, which will erase all music and data."

"Screen Lock" is provided by the iPod nano, iPod (5G), and subsequently released iPod models. Earlier iPods do not offer this feature.
In the Apple Support Site, Apple notes that the "Screen Lock" function:
Allows you to set a 4-digit combination to prevent someone else from using your iPod while it is not attached to a computer . When an iPod is locked, you must enter the combination to unlock the screen. This feature is different from the Hold switch in that the Hold switch only prevents iPod from turning on accidentally -- not keeping snoops out. Screen Lock only locks users out of the user interface. It does not encrypt data on your iPod. For example, if you use Screen Lock and then connect your iPod to a computer, you'll be able to manage music on your iPod with iTunes and access all data on it in disk mode (contacts, notes, and any other files you have stored on the iPod). This support document also provides additional information on locking and unlocking the iPod. According to Apple, if you have forgotten the code, you can unlock the iPod by doing the following:
Connect your iPod to the primary computer you use it with (the first one iPod synced with), and open iTunes. When you disconnect iPod from the computer, it will no longer be locked. If you can't unlock iPod using either [the code or connecting it to the computer you use to manage its songs]. . . you can restore your iPod to factory settings using iPod Updater. Please note that this will erase all data on your iPod. Afterwards, you can add your music and data back to your iPod. If you want to change the primary computer that your iPod is associated with, do this: 1. Restore your iPod. Warning: The restore process cannot be undone. All of your songs and files will be deleted. Always make a backup of your important data. 2. Connect your iPod to the computer that you want to be the primary computer. 3. Open iTunes and synchronize. Apple also notes that company "representatives cannot unlock an iPod if you forget your combination. If you can't unlock your iPod and you don't have access to the primary computer, your only option is to restore the iPod, which will erase all music and data."

reposting again..

"Screen Lock" is provided by the iPod nano, iPod (5G), and subsequently released iPod models. Earlier iPods do not offer this feature.
In the Apple Support Site, Apple notes that the "Screen Lock" function:
Allows you to set a 4-digit combination to prevent someone else from using your iPod while it is not attached to a computer . When an iPod is locked, you must enter the combination to unlock the screen. This feature is different from the Hold switch in that the Hold switch only prevents iPod from turning on accidentally -- not keeping snoops out. Screen Lock only locks users out of the user interface. It does not encrypt data on your iPod. For example, if you use Screen Lock and then connect your iPod to a computer, you'll be able to manage music on your iPod with iTunes and access all data on it in disk mode (contacts, notes, and any other files you have stored on the iPod). This support document also provides additional information on locking and unlocking the iPod. According to Apple, if you have forgotten the code, you can unlock the iPod by doing the following:
Connect your iPod to the primary computer you use it with (the first one iPod synced with), and open iTunes. When you disconnect iPod from the computer, it will no longer be locked. If you can't unlock iPod using either [the code or connecting it to the computer you use to manage its songs]. . . you can restore your iPod to factory settings using iPod Updater. Please note that this will erase all data on your iPod. Afterwards, you can add your music and data back to your iPod. If you want to change the primary computer that your iPod is associated with, do this: 1. Restore your iPod. Warning: The restore process cannot be undone. All of your songs and files will be deleted. Always make a backup of your important data. 2. Connect your iPod to the computer that you want to be the primary computer. 3. Open iTunes and synchronize. Apple also notes that company "representatives cannot unlock an iPod if you forget your combination. If you can't unlock your iPod and you don't have access to the primary computer, your only option is to restore the iPod, which will erase all music and data."

"Screen Lock" is provided by the iPod nano, iPod (5G), and subsequently released iPod models. Earlier iPods do not offer this feature.
In the Apple Support Site, Apple notes that the "Screen Lock" function:
Allows you to set a 4-digit combination to prevent someone else from using your iPod while it is not attached to a computer. When an iPod is locked, you must enter the combination to unlock the screen. This feature is different from the Hold switch in that the Hold switch only prevents iPod from turning on accidentally -- not keeping snoops out. Screen Lock only locks users out of the user interface. It does not encrypt data on your iPod. For example, if you use Screen Lock and then connect your iPod to a computer, you'll be able to manage music on your iPod with iTunes and access all data on it in disk mode (contacts, notes, and any other files you have stored on the iPod). This support document also provides additional information on locking and unlocking the iPod. According to Apple, if you have forgotten the code, you can unlock the iPod by doing the following:
Connect your iPod to the primary computer you use it with (the first one iPod synced with), and open iTunes. When you disconnect iPod from the computer, it will no longer be locked. If you can't unlock iPod using either [the code or connecting it to the computer you use to manage its songs]. . . you can restore your iPod to factory settings using iPod Updater. Please note that this will erase all data on your iPod. Afterwards, you can add your music and data back to your iPod. If you want to change the primary computer that your iPod is associated with, do this: 1. Restore your iPod. Warning: The restore process cannot be undone. All of your songs and files will be deleted. Always make a backup of your important data. 2. Connect your iPod to the computer that you want to be the primary computer. 3. Open iTunes and synchronize. Apple also notes that company "representatives cannot unlock an iPod if you forget your combination. If you can't unlock your iPod and you don't have access to the primary computer, your only option is to restore the iPod, which will erase all music and data."

When you lock an iPod nano that is not connected to a computer, you must enter a combination to unlock and use it. ... . You can unlock your iPod nano in two ways ... Connect iPod nano to the primary computer you use it with, and iPod nano automatically unlocks . Note: If you try these solutions and you still can’t unlock iPod nano , you can restore iPod nano.

You can unlock your iPod nano in two ways:
A Enter the combination on iPod nano by using the Click Wheel to select the numbers
and pressing the Center button to confirm them. If you enter the wrong
combination, it flashes red. Try again.
A Connect iPod nano to the primary computer you use it with, and iPod nano
automatically unlocks.
Note: If you try these solutions and you still can’t unlock iPod nano, you can restore
iPod nano. See “Updating and Restoring iPod Software” on page 50 for more
information.

You can unlock your iPod nano in two ways:
A Enter the combination on iPod nano by using the Click Wheel to select the numbers
and pressing the Center button to confirm them. If you enter the wrong
combination, it flashes red. Try again.
A Connect iPod nano to the primary computer you use it with, and iPod nano
automatically unlocks.
Note: If you try these solutions and you still can’t unlock iPod nano, you can restore
iPod nano. See “Updating and Restoring iPod Software” on page 50 for more
information.

You can unlock your iPod nano in two ways:
â Enter the combination on iPod nano by using the Click Wheel to select the numbers
and pressing the Center button to confirm them. If you enter the wrong
combination, it flashes red. Try again.
â Connect iPod nano to the primary computer you use it with, and iPod nano
automatically unlocks.
Note: If you try these solutions and you still can’t unlock iPod nano, you can restore
iPod nano. See “Updating and Restoring iPod Software” on page 50 for more
information.

There is only one way - and it will erase all your songs:

If you lock your iPod nano screen and can’t unlock it
Normally, if you can connect your iPod nano to the computer it is authorized to work
with, your iPod nano automatically unlocks. If the computer authorized to work with
your iPod nano is unavailable, you can connect iPod nano to another computer and
use iPod Updater to restore your iPod software. See the next section for more
information.
If you want to change the screen lock combination and you can’t remember the
current combination, you must restore the iPod software, and then set a new
combination.
Updating and Restoring iPod Software
You can use iPod Updater to update or restore your iPod software. Apple periodically
updates iPod software to improve performance or add features. It is recommended that
you update your iPod nano to use the latest software. You can also restore the software,
which puts iPod nano back in its original state.
â If you choose to update, the software is updated, but your settings and songs are not
affected.
â If you choose to restore, all data is erased from your iPod nano, including songs, files,
contacts, photos, calendar information, and any other data. All iPod nano settings are
restored to their original state.
To update or restore iPod nano with the latest software:
1 Go to www.apple.com/support/ipod and download the latest iPod Update. The update
has the latest software for all models of iPod.
2 Double-click the software installation file and follow the onscreen instructions to install
the iPod update.
3 Connect iPod nano to your computer and open iTunes. The iPod Updater application
opens.
If you’re using a Windows PC and the iPod Updater application doesn’t open
automatically, you can find the updater by choosing Start > All Programs > iPod.
4 Follow the onscreen instructions to update or restore iPod software.
If you use the iPod Updater application and it doesn’t recognize that iPod nano is
connected to your computer, reset iPod nano (see page 45).
If you want to restore iPod software and you don’t have an Internet connection, you
can use the iPod Updater application that was installed on your computer when you
installed the software from the iPod CD.

-Tha Mp3 Doctor

i forgot my ipod code
help me