type in #3825968#*
if you are going to get the Samsung gravity or the Samsung gravity 2 get the Samsung gravity 2 the phone has better features and a better camera.
remove the sim card and enter *2767*3855#
You can use the ZTX box to reset a t528g Samsung.
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The Samsung Intensity
how to reset samsung GT-E2550
The Samsung Gravity Smart is a competent Android messaging phone for smartphone newcomers in search of a physical keyboard at a budget price.
The best way to reset a Samsung GT-C3300K phone is to do a master reset. A master reset can be performed within the settings feature of the phone.
I did a master reset. I didn't recall setting a password (it will ask for a password before allowing a master reset). I contacted T-Moblile and was told that the default password was 1234. I worked for me. Give it a shot good luck!
reset code for samsung GTS3500i