Hello, I have an HTC Desire S, I am trying to connect it to HTC Sync on my PC from last 3 days but no luck. I was able to connect it to the same PC earlier but I recently formatted the C Drive of my PC and reinstalled HTC Sync and this issue popped in. By reading different solutions on this issue I have tried: > HTC Sync 3.3.10 > HTC Sync 3.0.5517 > Reinstalling these multiple times > Uninstalled iTunes and all other Apple softwares > Trying different ports of my laptop > Restarted and took out battery from my laptop as well as mobile > Went to Device Manager and checked My HTC driver status and yes its there with a yellow exclamation mark. I tried reinstalling it but the sign remains there. Connect to PC has the correct setting, Debug mode is already on. Even after all this still no luck for syncing while I can use it as Disk Drive. I also tried using "RUU_SAGA_ICS_35_S_HTC_Europe_14.01.401.2_Radio_20.76.30.0835_3831.19.00.110_release_275068_signed" application for updating the Android version to 4.0 but got error "Error 170 USB Connection Error". Any help will be highly appreciated.