The previous method which I posted last year regarding the installation of Whatsapp is no longer working. There is another method which works using the app Helium. I do not take credit for the instructions. Someone smart on the net discovered it and all credit goes to him or her. I first saw the instructions on the xda-developers forum and this is the link.
I used this method to install Whatsapp on the tablet which is linked to a different telephone number from my smartphone.
1. Install Whatsapp on smartphone through Play Store. SMS verification does not work here as I keyed in a different number (the one that I want to use on the tablet) from the one on my smartphone. Instead I needed to do a call verification. So they rang me up on the other phone and gave me the verification code.
2. Once Whatsapp is up and running, backup the app with Helium (previously known as Carbon). Once the backup is completed, there should be a folder on the smartphone called carbon/com.whatsapp
3. Install Helium on the tablet. Backup up any app on the tablet. This is so that the carbon folder will be created on the tablet.
4. Download Whatsapp from the original website (NOT Play Store) and install it on the tablet. Do not open Whatsapp first.
5. Copy the com.whatsapp folder from the smartphone to the carbon folder on the tablet.
6. Open Helium on the tablet. Restore Whatsapp on the tablet and there you go - Whatsapp is up and running.
Note:
1. Version of Whatsapp installed is 2.10.772
2. This method does work on unrooted phones or tablets. The only difference between rooted and unrooted is that you have to install Helium on your PC as well if your device is not rooted. Follow the instructions on the Helium webiste.
Update 08 Sept 2013
Updated Whatsapp to version 2.11.59. Still working.
