Updates available for my tablet? my tablet is NB1022C

If there is a new version available, follow these steps :

Tap "check update" in "Settings"
Then go to "about" and go to "system update" to check if the firmware is latest.

Steps to update :
1) Go to "Need Help?" page of ASUS official website http://www.asus.com/support to download ZIP file of firmware.
2) click the ZIP file after downloading is completed
3) Connect your tablet with PC via micro USB cable, and copy the ZIP file to the root dictionary of internal storage of tablet
4) Detach micro USB cable from the tablet to make the notification for firmware update popped up on status bar
5) Tap "System Update File Detected.." and follow steps to update firmware
Now your firmware is updated.

This happens automatically when Google makes it available You will see a notice on your device. Some older devices like the 1st and 2nd generation Nexus 7 are not being updated now at all.

You can check for availability of an update.Follow this

http://www.dummies.com/consumer-electronics/tablets/android-tablets/how-to-update-your-android-tablet-system/
.

I am not familiar with this device, but if I want to update my tablet to a new OS, I get it from Samsung. Updates like this are available in their program KIES. Updates to Ipads are available from Itunes, so I would guess that you have a program with your unit to do this.

You can have it tested with a simple voltmeter. As for replacement check ebay or amazon or contact the manufacturer

Have you tried hard reset back your stuff on the tablet through google photos and gmail

You go into settings, scroll down to the bottom where it says about tablet. Click on about tablet, there should be System Update at the top click it, it will check for a OTA update if there is one and download it. It should automatically check for an update, and say there's an OTA update available in your task bar.

Did you set up your tablet for wifi reception? do you have a home network tfrom where your tablet can get connection?

To update you will need:
1 iOS tablet (iPad, etc)
1 wifi internet connection
1 power source

1. power on your tablet device.
2. connect to the wifi internet connection.
A. Open settings
B. Open general
C. Select "software update"
You should now see what update is available. If you are below iOS 7, you will need to update to version 7 to be able to see iOS 8 as available on some devices.
3. Locate iOS 8.x.x (on my tablet it is 8.1.3 as I wrote this)
Make sure your tablet is plugged into a power source (you don't want it to lose power while updating)
4. Under the iOS update you want to install, select "install now" "download now" or "download and install"
5. Select "agree" when presented with the terms and conditions

You should see your device "downloading update" or "verifying update"

I have seen occasions where it will download but will not install until the process is repeated. (On one device I had to "install now" 3 times because the update failed to download or failed to install.

If the settings icon looks like this then it means that there is an IOS update available.
To update select Settings - General - Software Update, then click on update/install.

It means a software update for your device is not available, it all depends on your device and how old it is. Just because a ipad air may have the latest IOS this does not mean a ipad 2 generation will have the same software