Need to recharge prepaid internet laptop how can I do that on my iPad

You have a WiFi device that must send/receive signals from your home wireless system. That generally doesn't extend much out of the home. You need to find a free wifi zone or kupgrade to an iPad with cellular service that connects you like a built-in phone.

It is telling you to connect it to your PC or laptop where you have iTunes installed. If you don't already have iTunes installed in your computer, you will need to download and install the iTunes software to it. When your iPad is connected, iTunes will synch and update it if you managed to erase the O/S or other necessary items. iTunes connected via the USB cable is even able to install or update the tablet's operating system. It's not just for music.

Your laptop or desktop will need to be connected to the Internet in order to download updated or original operating system. Just follow the prompts.

Make sure you delete the previous account and you are connected to wifi during that process.

Verify that you can get to another site on the internet. You need a connection to the internet before trying to get to Facebook.

if you have laptop/desktop computer you can sync the iPad with iTunes and download iOS 8.1.2 there:
Upgrading iPad to iOS 8: Through iTunes 1. Backup your iPad
Open iTunes. Select your iPad in iTunes and click Back Up Now.
2. Restart your iPad and your Computer
3. Download and Install the Update
Go to iTunes -> Select iPad -> Check for Update -> Click Download and Update

Whichever method you choose, the process will take quite some time to work depending on how much free storage you have on your iPad, your internet connection, and how Apple's servers are doing with upgrades. Occasionally, Apple will either not let you download the upgrade or it will fail. For iOS 8, you must have an iPad 3 or newer. This does not work with the original iPad - if something goes wrong, restart your device, and try again.

How to Upgrade to iOS 7 on an iPad or iPad Mini
How to Install iOS 8 When Your Device is Low on Storage

it's now in DFU mode and must be plugged up to the computer and connected to iTunes.

If you have ipad 2, connect to a loptop with internet connection. An itunes must have installed on that laptop. Then wait for notification for an upgrade to 7.06. But first backup your ipad

Three possibilities:
1. Worn out battery (rechargeable batteries have limited life span, then need to be replaced)
2. Bad charger
3. Bad cord
All three of these can be purchased and replaced.

USB hubs typically don't generate the 10 watts necessary to charge an iPad when it's connected to your computer. This basically means you can't use your laptop to recharge your iPad.

Apple recommends finding an AC outlet and using 10-watt power adapter that came with your iPad.