CWM Recovery mode menu does not show up, stucks at red screen
Ohkay I did not found any custom ROM from this specific device Karbonn A5+ neither tried to cook one myself, but I learnt some facts about it, so just putting them here so that others may get some help.


Drivers at the said source site are compatible with Karbonn A5+ , though they have been said to be of Karbonn A5 at the source site.
The custom CWM at the said source site is incompatible with Karbonn A5+
About stock recovery - I already said it in comments, just repeating it out here: 



  My phone is detected as W650 by adb devices command. The stock recovery provided in other video by same person is for many firmwares including w619 and w650 as it lists while running. So I tried it and it worked. However the CWM recovery seems to be for W619 only. 


Though I still not know from where these numbers w650, w619 came from, the internal firmware code? I will like to know this.

Honestly I think this device cannot take on ICS or JellyBean nicely because of its low RAM. So just stick to stock gingerbread - its fine. In fact I got another device which runs JellyBean on 512MB RAM &amp; 1GHz dual core processor. I always feel that my old phone running gingerbread is smoother than this newer one - at least at basic swipe transitions/animations. JellyBean feels bloaty/resource intensive, but is surely smoother than ICS.