To flash or update the Samsung GT-C3520 , you generally use the specific Flash Loader 7.5.4 CSC v0.2 Citrus Lite
installed to ensure the computer recognizes the device during the critical 1+2 button-press sequence. step-by-step technical guide on how to set up these specific files in the Flash Loader? How To Flash Unbranded Firmware on Your Samsung Phone! c3520 flash loader 75 4 csc v02 citrus 218l better