swapping of phone memory with external sd memory in micromax A89 ninja

To increase the phone memory of micromax a89 ,as phone memory is 2 gb which is not enough for playing HD games which would be 1.5 GB and so on http://forum.xda-developers.com/attachment.php?attachmentid=1799428&d=1363097534 download from above location 1) COPY THE DOWNLOADED FILE IN SD CARD AND EXTRACT IT 2) INSTALL "Root Explorer.APK", probably download it from google or google play 3) open root explorer and Browse to the location /system/etc and you will find a file named "vold.fstab" 4) Rename existing "vold.fstab" to "vold.fstab.bak" 5) now copy the extracted file "vold.fstab" from sd card to location /system/etc (by using root explorer application) now reboot your phone and enjoy precautionns your phone should be "rooted" if copying or renaming is unsucessfull ,select "mount R/w" FOR SWAPPING samsung mobiles follow the below link https://www.youtube.com/watch?v=KQRqN0mpUG4 for installing roms in micromax A89 https://www.youtube.com/watch?v=ZiBDHQlKGrA CAUTION:- at your own risk