So if you are looking to purchase a second hand iPad, make sure….
Need to check that the device is unlocked and not stolen. Legitimate owners usually keep their purchase receipts.
Check for screen and case damage and in particular minor scratches may not effect screen usage but can be used to lower asking price ?
Launch a few apps, including the Notes app, which gives you an opportunity to use the on-screen keyboard. If you have Wi-Fi access, open the Safari web browser and go to several websites.
Plug the iPad into a wall outlet and confirm the battery icon in the upper-right corner shows a lightning bolt, which means it is charging. This indicates the port at the bottom of the iPad is in good working order.
Any other suggestion ?
In a completely sane world, madness is the only freedom (J.G.Ballard).