Samsung i780 Service Manual page 26

Array course control
phone image. If so, terminate the application and then try the download again.
If USB port is changed, at first time you may see "Port open failed..." message or application
hang( Opening COM XX succeed...). If so, terminate the application and then try the download
again.
If USB cable to the mobile device is not connected tightly, you may see "Port open failed..."
message or application hang( Opening COM XX succeed...). If so, terminate the application and
then try the download again.
3. "Write Failed" message
If battery level is low, use charged battery and try again.
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