I bought my tablet in 2014 it has never been updated i have old version of android have do i update it

Each version of android has a fairly limited life.

Each hardware manufacturer has to fiddle with the android software to make it fit their devices, consequently updates don't come from google but have to come from the device manufacturer.
If it is possible to update the android operating system the device menu will list the option though many low cost generic devices aren't updatable (unless you are a computer scientist).

If updates are available it is usually for a limited time, often until a new version of android is released. Some apps also have to be updated but they do reach a point where they no longer function with earlier versions of android...

You presumably mean versions of Android operating system.

I went in to this a while ago owning a couple of little used but old tablets and now many of the apps no longer work and can't be updated.

I read an article by a boffin who had tried to update Android. He got inside the structure of Android and after much fiddling around he made it better so it would accept a few updated apps but most of the important ones still wouldn't go.

The reason for this is Android is as unlike the Windows OS as it is possible to get. Tablet and phone manufacturers buy a current version of Android and then they have to modify it to make it work with their electronics and that makes their version almost unique. Updates have to come from that source. Some manufacturers provide updates but many don't and when it has outlasted it's usefulness it is time to replace it with a newer unit. If update is in the menu it will have a longer useful life but lots of label engineered units and budget models don't have that option meaning the "manufacturer" has no intention of providing updates.

The boffin concluded for all practical purposes there is no way to load a later version of Android onto older electronics.

https://www.google.com/search?q=update+the+operating+system+on+mediatek+android+tablet

How to Upgrade mediatek android tablet firmware 2022?

http://gofirmware.com > content > mediatek-android-ta...
Upgrade to newest version firmware on you device, mediatek android tablet firmware update you current version firmware to latest version, download .

How to Update an Android Tablet - Lifewire

https://www.lifewire.com > Tablets > Android
Mar 19, 2021 - Manually check for updates by going to Settings > Software Update > Download and install. Android tablets automatically update periodically ...

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try this link... Free update for proscan tablet Google Search

This may be a firmware problem. I had this problem. Download a android firmware app. Actually it's called android firmware and updates app and it's free. I don't think these cheaper tablets update as they should, that causes them to not connect to the internet. Why? I don't know. It drove me crazy. I tried everything. My daughter figured it out after messing with the tablet for months.

If this is an old device, with an old version of android I think 2.2 or 2.1 or below, you cannot update from android market ( original play store name) to play store because it isn't compatible. .. is n9 longer supported.

I suppose you want to update to a higher Android version. I advise against it if you are a novice. First, you have to find an updated version of the ROM for your tablet specifically. Then, you will have to use an appropriate software to flash the ROM into your tablet. There is always a danger of bricking your tablet when flashing.

Below is a short video on installing Google Play. Often, when we install an application in that same place will be an option to update to the latest version. Checkout the link.

How To Intsall Google Play Store On Any Android Tablets Like HCL Me Tablet

I’m happy to help further over the phone at https://www.6ya.com/expert/darnell_06979bec4e109662