This is a work in progress, and I was only able to test it on Samsung I9001, I9100 booth running on CM10.1 based Roms
Since this keyboard was extracted from a 4.2.2 ROM, I don't think its possible to run on a 4.1.2 based ROM, but feel free to test it and give the feedback.
1) Copy the file to your SD Card
2) Reboot in to CWM recovery
3) Wipe Cache
4) Wipe Dalvik
5) Select the file “
6) Reboot your rom
7) Go to “Settings” – “Language & Input”
8) Change the input method to “Xperia Keyboard”
9) Open the Keyboard settings
10) Go to “Writing languages”
11) Download your language Dictionary
Updated the file to increase compatibilities.
Leave you whit some images...
Please give me “thanks” if you enjoy this keyboard