Download Cognition S2 ROM for Samsung Galaxy S2 (CWM)

Don’t like Samsung bloatware that come along with stock Samsung Galaxy S II firmware? Cognition S2 ROM is the one that you should try. Cognition S2 v1.31 is a custom ROM based on Android 2.3.4 Gingerbread (XXKG3). It is rooted, deodexed and zipaligned. And added lot of goodies like SIP over Wi-Fi and 3G, accurate battery mod, extended power options, disable battery full notification & vibration, specify default install location…

Cognition S2 for Samsung Galaxy S2

Quadrant score
TouchWiz Launcher
Software information

Cognition S2 v1.31 is using Ninphetamine 2.0.2 Kernel. Looking forward for next release which will be based on Android 2.3.5 Gingerbread (GRJ90).

Installation guide ~ How to install firmware on Samsung Galaxy S2 with ClockworkMod Recovery?

Download Cognition S2 v1.31 CWM ROM here.


  1. i installed the cognition v1.42 without much problem. when new cognition v1.51 out, tried to install but cannot go into the external_sd folder to flash new rom. please help.

  2. Hi..

    I like your site, and specially i have bought a SII recently and want to root and play with it..
    Can you please tell me, whatever we do.. i mean root etc, is it possible to bring the device back to stock so that the warranty etc remains ?? If yes, can you suggest a link ?



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