The most effective method to update Samsung Galaxy S Duos to Android 4.2.1 jelly bean firmware

Samsung has not yet discharged authority jam bean firmware for Samsung Galaxy S Duos. You may discover this irritating since Samsung Galaxy S Advance - the senior sibling of S Duos has accepted authority jam bean update from the early 2013. Your best way to update is to blaze Cyanogenmod 10.1 on your Galaxy S Duos. This is a custom ROM that incorporates Google Now and Project Butter and presents to every one of you the fun of jam bean. Your gadget must be attached to glimmer this custom ROM .

CyanogenMod 10.1 - DOWNLOAD

Google package - DOWNLOAD

Instructions : 

Step 1 : Download CyanogenMod 10.1 and the Google package and transfer it to the external SD storage.

Step 2 : Reboot the phone into ClockworkMod recovery .For tutorials on how to boot into ClockworkMod recovery.

Step 3 :  Select “wipe data/factory reset” and “wipe cache partition”. After that Wipe “Dalvik cache” .You will find this option in “advanced” option.

Step 4 : After the wiping process completes select “install zip from SD card” and navigate and locate the CyanogenMod 10.1 file. When the flashing completes again select “install zip from SD card” and choose the Google package file.

Step 5 : Reboot your device

You are done.Your device is now running on Android 4.2.1 jelly bean.