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finally, i had a physical problem with the micro-usb connection on my samsung s2... i returned it to samsung and they repaired it ! it seems that the micro-usb connection on s2 are very fragile...especially when you connect/disconnect very often your device !! hope this helps...


use kies to force a reinstall of the drivers.

in kies (version

  • tools > troubleshoot connection error.
  • follow the wizard (there is a "reinstall device driver" stage).

i don't have a special confidence this will fix your problem. i offer it as something to try.

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