There are lots of different methods to recover deleted messages. You can follow below steps to reach your aim.
After you delete messages on iPad, you suddenly find that the messages are useful, what should you do? Actually, the iPad delete messages can be recovered. This part will tell you how to retrieve deleted messages on iPad in detail. I recommend you use Leawo iOS Data Recovery
to help you solve the issue on how to recover deleted iMessages on iPad, for this tool is quite useful to recover files and data on iDevices that have been lost, damaged or deleted. All iDevices can use Normal Mode of Leawo iOS Data Recovery. Only iPhone 4 and iPod Touch 4 can use DFU Mode now to solve how to recover deleted iMessages on iPad. You could refer to the following steps to check how to retrieve deleted messages on iPad.
1. Connect iPad to PC and Choose Normal Mode
Plug your iPad into PC and launch Leawo iOS Data Recovery, and then tap the option of "Recover from iOS Device". A window will pop up to ask you "Whether to enter DFU mode", and you need to click "Normal".
2. Click on "Start"
Tap "Start" button to start scanning the iPad data.
3. The Scanning Process
When the scanning starts, wait until the process is over.
4. Tap "Messages" and "Recover"
When the scanning process is over, your iPad data will show on the left side of the panel. Tap "iPad > Messages" to check all messages on the right side of the screen. Then tick "Only display the deleted items". Choose the iPad delete messages you want to recover, and click on "Recover" at bottom right of the interface.
5. Set Output Path and Recover Messages
A dialog will pop up to direct you to save the recovered messages to a folder you set. Tap "Open" on the right side of "Save to" to select a folder on PC to save the retrieved iPad delete messages. You can check "Automatically open the output folder after finishing recovery" if you need. Click on "Go" button to begin the data-recovery procedure, and you can recover the iPad delete messages to your computer.
As mentioned, this software enables users to recover various kinds of files of iDevices. If you have deleted other kinds of files by mistake, you can also use this tool to help you. Once you use this program, you will find how powerful it is to help you solve how to recover deleted iMessages on iPad.
For more details, check: How to Recover Deleted iMessages from iPhone/iPad/iPod touch