It will be in the best interest of everybody here in the forum to please TAG your messages Subject line with the model of your phone when you are posting a new message, in return that will get you quicker responses from other members that have the same phone model as you do.
Here's a list of the most popular models that are seen the most in this section of the forum:
[i9020t] or [GT-i9020] or [GT-i9020T]
[i9020a] or [GT-i9020A]
[i9023] or [GT-i9023]
[NS4G] or [d720] or [SPH-D720]