How can I tell if I have an iPad 1 or 2 - Apple iPad 64 GB WiFi

If you remember the password of your iPad, it's would be easy. However, you can still refer to below steps to unlock an iPad without password.
It is a good habit to have your iPad backed up regularly. In case of your iPad is locked, disabled or being stolen, you can easily recover your data from it. Otherwise, you'll lose all the data. To unlock iPad screen without password or to unlock disabled iPad mean you have to remove your previous pass code and restore your iPad. Here we introduce three methods which you can follow.
Method One: How to unlock iPad without password using iTunes

• 1. Connect iPad to the computer you have synced with.
• 2. Open iTunes on your computer and connect it with your iPad. If fortunate, you can enter the iTunes without password. But in most cases, there would be prompt asking for a pass code. Try another computer you've synced with, or use recovery mode. (The recovery mode will be mentioned in method three.)
• 3. Find your iPad in summary and make a manual backup. Once the backup have finished, click Restore your iPad with the most relevant back-up.

Method Two: How to unlock iPad screen without password with iCloud
You can also use iCloud to remove your password and recover your data if you have backed up before it was locked. And it is in the premise that you have set up Find My iPhone on your iPad, and you did remember your Apple ID, you can use iCloud to unlock your iPad.

• 1. Open your laptop or computer, go to icloud.com/find or open the iCloud app.
• 2. If the sign-in window pops up, just sign in with your Apple ID.
• 3. There's an All Devices button at the top-left of the window, click on it to call out a drop-down menu and choose your iOS device.
• 4. Click Erase (your device) in the prompt to finalize the process.
• 5. Now you can either recovery data to your device from a backup or set up as new if there isn't any back-up before.

Method Three: How to unlock a disabled iPad in recovery mode?
If you've neither synced with iTunes nor set up Find My iPhone in iCloud, you'll need to wipe your iPad to factory setting to remove the password, which means you'll suffer losing all your data on iPad and get it as a new one.
Please pay attention there is a slight difference in putting different models of iPad into recovery mode.
iPad Air

• 1. Turn off your iPad Air, press and hold the Home button.
• 2. While holding the Home key, connect the USB cable to the device. Wait until the Apple logo appears and keep holding the Home button for few more seconds.
• 3. Continue holding the Home button until the iTunes logo appears.

iPad mini/iPad pro

• 1. Connect your iPad to your computer or laptop and open iTunes.
• 2. While your device is connected, force to restart it.
• 3. Press and hold the Sleep/Wake and Home buttons at the same time. Don't release when you see the Apple logo. Keep holding both buttons until you see the recovery mode screen.

Now you have entered the recovery mode, and

1. When you see the option to Restore and Update, click it.


For more details, check: How to Unlock iPad

Is there anything wrong with the passcode? If your iPad is locked and you forget the passcode, please follow the steps below to unlock it.

1.Connect your iPad to your PC or Mac.
2.Select your device in the iTunes sidebar, and click the"Summary" tab.
3.Click "Check for Update". iTunes will show you if there any new version of iPad software is available.
4.Click "Restore iPad". You can finish the restore process by following the instructions given. During the process, a recommend that tells you to back up your files will be given. You can restore your data after the process is complete.

Now, you must have restored your iPad.
Note: Even you bring your iPad to the Apple service center, Apple staff also need to restore your iPad to unlock it. That's to say, you need to erase everything on it.

http://www.leawo.org/tutorial/forgot-ipad-screen-lock-password-how-to-recover-data-from-locked-ipad.html

It may be too full. Check how much free space you have. Try to have approximately 3GB free. Delete things that are easy to replace like apps, or music you can download again.

Hi there Lois! Try restarting the computer (and maybe the Ipad as well). It may help. If that doesn't work check out: iPad Contact Support Apple Support and press "Get started." Your issue might not be listed so click on any of the options and click "The topic is not listed." Apple has the #1 support in the world. I wish you good luck on getting the Ipad up and running.
-Mr. W

Can you install Dropbox app on both tablets to transfer pictures? Or feel free to try this iPad file transfer program on your computer. Transfer Files among iOS Devices iTunes and PCs with Ease

Do you want to delete some photos/videos in order to free up space of your iPad? Here's a related guide for you.
How to Delete Movies on iPad to Free up Storage Space

if you have laptop/desktop computer you can sync the iPad with iTunes and download iOS 8.1.2 there:
Upgrading iPad to iOS 8: Through iTunes 1. Backup your iPad
Open iTunes. Select your iPad in iTunes and click Back Up Now.
2. Restart your iPad and your Computer
3. Download and Install the Update
Go to iTunes -> Select iPad -> Check for Update -> Click Download and Update

Whichever method you choose, the process will take quite some time to work depending on how much free storage you have on your iPad, your internet connection, and how Apple's servers are doing with upgrades. Occasionally, Apple will either not let you download the upgrade or it will fail. For iOS 8, you must have an iPad 3 or newer. This does not work with the original iPad - if something goes wrong, restart your device, and try again.

How to Upgrade to iOS 7 on an iPad or iPad Mini
How to Install iOS 8 When Your Device is Low on Storage

There are free apps that can tell you everything about your iPad. You can do a search on the APP store in utilities. I use System Status. If tells you everything about your iPad including disk space.

just reset by pushing the reset button