More on JiaYu S3 Setup

When I first received my new S3, the Google Gmail and Google Calendar did not work.  In addition, the stock system recovery did not have all the functionality of CWM or TWRP custom roms.  These were the things that I would like to improve.

I found out from my research on the internet that JiaYu has an apps on Google Play Store that would allow the system rom update and installation of custom roms.  I first task was to download and install this apps - Jiayu.es (es stands for Spain and most of the apps support are in Spanish even though it is a Chinese phone manufactured in China - must have something to do with government regulation and their marketing strategy).

This apps has 3 sections: Downloads, Drivers-Tools and Tool ROMs. According to the apps description, it allows the user to do the followings:

"Formal implementation of Jiayu, with this application you can identify your Jiayu and access all the available downloads for your phone within www.jiayu.es, you have roms, tutorials, recoverys ...
With this application you will have to update your terminal Jiayu:
- Access to individual downloads for your device
- You can download and install roms from this application with just 3 clicks.
- You can install or change the recovery
- Install downloaded applications
- Backup and restore your IMEI
- Access to video tutorials youtube
- Get the support forum
- Access the web
- Get in touch with us "

After the successful installation of Jiayu apps, I then downloaded TWRP v2.8.4.0 custom recovery.  I also downloaded ROM MANAGER from Googly Play Store to install TWRP.  After the TWRP was installed, I then created a complete system backup of the phone onto the sd card before I attempted to make any further changes to the phone.

I then searched and downloaded the latest Google Apps (pa_gapps-modular-full-4.4.4-20150215-signed.zip) for my stock Android 4.4.4.  After the installation of the Google Apps using TWRP, the Gmail is now working.  However, the Google Calendar still doesn't work.   I think I will fix this when I do the Android 5.0 update when JiaYu releases it.