Atf dont detect any mobile

[RIYAZ COMBO]

hello sir my old ver atf 7.4 was runinig very well but when i update atf 7.9 ver dont connect any mobile why please reply urgent i uninstalled 7.9 and again installed 7.4 but same problems

[PALMOBILE@SAMSUNG]

hello sir my old ver atf 7.4 was runinig very well but when i update atf 7.9 ver dont connect any mobile why please reply urgent i uninstalled 7.9 and again installed 7.4 but same problems

dear master riyaz did you have you have driver also installed
pls check main cable also

[jawedjp]

if its not detecting then if warranty is left repalce it if not then open the box then do jumper.