iPad, iPadOS 14
Do you get any error message?
A question:
1.
Do you have a MDM profile?
If so, contact your company - IT department.
2.
Have you install / use iOS Beta version?, if so remove the beta profile (Settings -> General -> VPN & Device Management).
Then Restart your iPhone and check for updates again.
If neither applies, check -> If your iPad is eligible for an update, you can check by reading this Apple article:
iPad models compatible with iPadOS 13 -> iPadOS 16 -> iPad models compatible with iPadOS 16 – Apple Support (UK)
If your iPad is eligible for an update, go to Settings -> General -> Software Update -> Download and Install.
You need about 6 GB device storage and good Wi-Fi.
If they are On, turn Off Hotspot & VPN.
Charge the battery > 70%.
See the following Apple articles:
Update your iPhone, iPad, or iPod touch -> Update your iPhone, iPad, or iPod touch - Apple Support (IN)
If your iPhone, iPad or iPod touch won’t update -> If your iPhone, iPad, or iPod touch won't update - Apple Support
You can do the update via PC, see this Apple article: Update software on iPhone, iPad or iPod touch in iTunes on PC
Update software on iPhone, iPad or iPod touch in iTunes on PC – Apple Support (UK)
If you have a Mac see this Apple article: Update your iPhone, iPad, or iPod touch with the Finder
Update your iPhone, iPad, or iPod touch with the Finder - Apple Support
