How to update my iPad to iOS 11.0?

You don't.

Your year and model iPad is too old.

Sorry.

Upgrading/updating that iPad any farther will never, ever be possible.

If your iPad model has been stuck on iOS 9 or 10 for all of these past years, then it is possible you own an over 10-1/2 to 11-1/2 year old, 2011 iPad 2 or 2012 iPad 3, 4 or 1st gen iPad Mini.

These iPad models cannot ever upgrade beyond iOS 9.3.5/9.3.6 or 10.3.3/10.3.4.

Over 10 to 11-year old iPad models are, simply, too old, now.

Sorry.

Apple ended support for all 10-11-year old iOS devices 6 years, ago, in 2016.

Third party app developers abandoned and stopped supporting these 10-11 year old iOS devices 4 years, ago, in 2018.

There are, virtually, NO MORE third party apps available from the iOS App Store, any longer!

Third party compatible apps for such old devices are few and far between, now, in 2022.

This includes apps for both iOS 9 AND iOS 10 devices and, throughout 2022, ALL iOS 12 ONLY devices!

AND, NO WAY to, initially, install any older, compatible, third party apps into this old iPad, any longer!

NO MORE SUPPORT! NO MORE APPS!

All 2011-2012 iPad 2, 3, 4 and 1st gen iPad Mini models are fully and completely unsupported AND obsolete!

Sorry, but this is the reality for ALL 10-11-year old AND OLDER iOS devices now. Especially now, near the end of 2022.

In addition, the internal, rechargeable batteries in these old iPads are, also, running on borrowed time.

Not worth the costs to replace these old internal, rechargeable batteries in these old iPads, any longer, either.

Also, any Web browser from 2016-2018 is now too old and no longer secure to be trusted to use on today’s modern Internet.

While these old iPad models still have some still working and useful features ( photo library, music and video consumption, eBook reader using iBooks and can still be used for notes with that old version of the free iOS Notes app and some limited and slower Web browsing/surfing ), these old iPad models are very far behind and very underpowered for even modern, everyday tasks.

I am not even sure you can even use the old Mail app, any longer, with current online email services!

Also, these very old iPad models have NO trade-in NOR any resale value, either.

Sorry.

Consider that it is nearing the end of 2022, now.

iPadOS 16.2 is here.

Your iPad will be, at least, 6 OS iterations behind, now.

You really need to seriously consider a purchase of a new iPad model OR a much, MUCH “newer” and less expensive, refurbished or used iPad models, from better known, trusted Apple product/device retailers/resellers, some locally or from online, on the Web/Internet, capable of running the latest iPadOS versions.

There are PLENTY of less expensive, newer, older iPad models that can run the latest, current versions of iPadOS.

If you need OR ONLY able to afford to purchase older, less expensive iPad models, look at older iPads from 2015 and later.

All of these older model iPads below, CAN, currently, run the latest releases of iPadOS 16.

2015-2017, 12.9 inch screen iPad Pro models. ( 1st gen Pencil support )

2016 9.7 inch screen iPad Pro models. ( 1st gen Pencil support )

2017,10.5 inch screen iPad iPad Pro models ( 1st gen Pencil support )

2018 11 inch or 12.9 inch screen iPad Pro models ( 2nd gen Pencil support )

2020 11 inch or 12.9 inch screen iPad Pro models ( 2nd gen Pencil support )

2017, 9.7 inch screen iPad 5th gen models ( NO Pencil support )

2018, 9.7 inch screen iPad 6th gen models ( 1st gen Pencil support )

2019, 10.2 inch screen iPad 7th gen models ( 1st gen Pencil support )

2020, 10.2 inch screen iPad 8th gen models. ( 1st gen Pencil support )

2019, 7.9 inch screen iPad Mini 5th gen models ( 1st gen Pencil support )

Get the largest internal data storage model you can afford as NO Apple iOS device has ANY expandable storage.

I am sorry that you had to learn all of this, but this does not change any of the facts regarding these very old iOS devices.

Sorry & Best of Luck to You!

If you decide to go down the path of purchasing used, secondhand Apple devices, from individual Apple device sellers, here is how to avoid purchasing an Apple iOS/iPadOS device with user activation lock, in the future.

If you purchase any iPad, or any Apple iOS device, for that matter, used/second hand, online, or even in-person, make sure this iPad does NOT have user activation lock and has been properly reset for sale.

A properly reset for sale iPad should initially power up to an animated, multi-language “Welcome” screen.

DO NOT take the iPad seller's word that this iPad is user activation lock free!

We have seen plenty of used iOS device purchasers get scammed.

User Activation Lock can never be bypasss, circumvented or worked around IF there is no correct previous/original user information to be able to do so.

Apple doesn't get involved with ANY user activation locked, used/second-hand sold devices, either.

So, buyer beware!

If purchasing a used device in-person, power the iPad ON

If the iPad DOES NOT display the initial animated, multi-language “Welcome” screen, then pass on purchasing this iPad.

If the iPad powers up to any other screen, then forget purchasing this iPad.

You cannot trust that the seller actually has the correct needed info to properly reset the iPad back to factory settings right then and there before the actual purchase and exchange of money for the iPad, in question.

Pass on the device!

If you are purchasing this used iPad online ask the seller to provide multiple images, either online or be sent to you via email, showing this animated, multi-language “Welcome” screen of the interested in purchasing iPad model.

Even better, ask for a short video be sent to you showing this animated, multi-language “Welcome” screen, in action and in its entirety, posted to the online ad or emailed to you.

If the online iPad seller refuses any of these requests, pass on the iPad. DO NOT buy!

Good Luck to You!

If your iPad is currently running iOS 10.x.x you cannot update further to iOS 11 due to that your iPad is too old to run anything higher then iOS 10.x.x