Based on the search term provided, you are looking for firmware flashing tools and files specifically for the (a feature phone, often associated with the "Citrus" codename or similar budget models).
Click and select the corresponding CSC file from the firmware folder. Initiate Flash: Click the Start button in the software. c3520 flash loader 75 4 csc v02 citrus 218l better
: Click SET MODEL and select the configuration file C3520_Citrus_Setting_v00.mdl (usually located within the loader folder). Breakdown: