I was testing new Android Run Time (ART), but after that I can't use USB debugging. After that I had changed runtime back do Dalvik and factory reset phone with no success? I also have updated drivers.
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Did you check if the `Enable USB debugging` has remained checked ? – Mickäel A. Mar 07 '14 at 19:28
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Yes, I did. It's checked, thanks anyway. – Matjaž Mar 07 '14 at 20:35
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If you mean adb won't connect at all, I'd be very surprised if this was related. If you mean that the java debugger won't connect, I could imagine a causal relationship before the factory reset, but less so after. – Chris Stratton Mar 07 '14 at 20:50
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Actually, Eclipse don't offer me option to run from device. Emulator works perfectly. – Matjaž Mar 07 '14 at 20:54
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I was checking drivers under Computer -> Manage -> Devices but always got message that my drivers are up to date.
Here is solution:
Eclipse -> Android SDK Manager -> Install updates (Google USB Driver)
NOTE: Before you start installation save Eclipse projects and exit Eclipse.

Matjaž
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- Enter dos or shell,try using command "adb connect usb" or "adb restart"
- If the step above dose not work,try using WIFI to debug.Download a adb test app named ADBDEBUG or else,then enter shell,use "adb connect ip:port".
- Maybe it's useful for you.

hirra
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