Phone flashing or reprogramming is the process of changing a phone’s settings or loading certain carrier files to a cell phone, allowing it to work with another carrier or provider.
The first thing to do is to identify if the phone is a code division multiple access (CDMA) phone. To do this, take out the battery, and see if there is a SIM card. If there is no SIM card, then it is a CDMA phone, and that means it can be reprogrammed.
Ensure that the USB cord that came with the phone is available. Then go to the Internet, and search for a free flashing software. Make sure that the software is compatible with the operating system, otherwise it will not work. Also ensure that it is compatible with the cell phone before flashing. Another factor to consider is that if the previous carrier was a CDMA service provider, the new one should be as well.
The next step is to download the flash software program selected, and then unzip the files. Be sure to read the user manual that is the text file titled “Read me,” as it contains full instructions explaining how to go about flashing the phone.