Micromax nitro a311 fastboot connection error I'm trying to flash custom ROM for Micromax a311 when I enter fastboot devices it is stuck at &lt; waiting for device >. I think this is driver problem, I tried with some drivers that I found on web, but nothing help me, 

that phone is not having any OS right now, and it is showing command not found error in Chinese. I can't install OS from sdcard either!

please help me
&lt; Waiting for device > is caused by the Android Debug Bridge interface driver missing.  Go into Device Manager and you should see the failed driver.  Right click on the driver and update it.   Microsoft Update now carries the ADB driver.