If you are trying to flash a Spreadtrum/UNISOC device, read QCN/NV data, or repair IMEI, you have likely run into the dreaded "Diag Port" issue. The device shows up as "SPRD U25 Diag" or just "Spreadtrum USB Device" in Device Manager, but your flashing tool (SPD Research Tool, Miracle Box, etc.) won't recognize it. Atithi+tum+kab+jaoge+index+verified [UPDATED]