Share your experience!
Click the link in my above post for full instructions
Did you flash with flashtool? If yes, did you use the correct firmware?
Then do it again with the correct one. You have to make sure to use the correct firmware for your model. You can know the exact model from service menu:
Open phone dialer, dial *#*#7378423#*#* then choose Service info -> Model info and write down the model you'll get (should start with D65), that's your model number, any firmware other than this model will not work and may cause your phone to brick.
For which model?