Micromax — Lower vision to higher version. In higher version not sufficient ram/rom to download more apps.

Address:

Cuttack, Odisha

I have unite 2 A106. Last few days before i got a msg to update to 5.0 androide version. Then update it but some apps are nt available, then i go to play store & installed few apps but my ram shows 350mb still i could nt installed more apps. Why it could happen? Then i go to restore & restored but still 5.0 available. Please resolve my problem. How could got previous version. If it could not happen then tell me how could free some ram to maneage 5.0 version.