Comment is lack of formatting so i add an answer.
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Check if your computer had your phone driver. I assume that your use
Windows
. OpenDevice Manager
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At a command prompt, in the Start Search box, or in the Run box, type the following command:
mmc devmgmt.msc
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. Other ways : check link
If you find your phone name or
ADB Interface
so you got driver. Try to restartDDMS
or restart yourEclipse
. -
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If you don’t find your device or see something
Other device with yellow question mark
so try to install driver by browsing on your phone toSettings
–Developer Options
–Enable developer option
–Enable USB debugging
–Plug your phone to computer
. Windows will ask you to install driver.
3, Update Google USB driver in Android SDK Manager (in Eclipse) or search Samsung Galaxy Ace GT-S5830i driver
4.Some weird case i got on some device.
- Nexus S: disable Developer option. Restart phone. Enable again. Windows ask to install driver or you will see it in
Eclipse
. - HTC phone or Samsung : change
Connectivity Option
on phone toCharge only
(Swipe status bar. Check notifications displayed). Some phone set it to some kind of Sync data so Windows can not recognize device.