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Samsung Galaxy S3 SGH-T999 stock supported USSD codes

There may have been a time when you called in to get support on your phone and they had you type in some random numbers under your phone to set something up. These codes are called USSD and there are a number of them that developers use to troubleshoot problems and configure devices without having to contact the cell company for support. Below is a list of the known supported codes. (more…)