Can anyone plz guide me to downgrade to 4.1.B.0.431 version?

[chinna1431]

The recent update is worse than any update till we get now.

Issues are:

-Wi fi disconnecting

-LED sms not fixed

I dont know weather they test and release or not.

I need the process to downgrade to .431 version or to GB.GB is far beter than this irritating updates on ICS :X

[chinna1431]

okay i need to get rid of this bugs update.i go for 2.3.4 GB.if al this bugs are fixed and get a new update then i update directly to that update.thanQ