go to /data/custom.bin and open it like .txt file.
 Check what is there and remember it (in my phone: "dt/pl)". 
Back to root directory and go to /cust/,
 change name folder for me i must change "hw" to "dt",
 open this folder and again change name, for me i must change "normal" to "pl". 
Now you must do factory reset, than your phone is perfectly working.