wasn't really sure where to post this thread as my phone doesn't have a separate section and since this is more of a general issue rather than one related to a specific phone model, thought I'd try my luck here.
Anyways onto the problem - was gifted a Micromax A092 a few days back. Worked fine until last night when Windows stopped detecting it. When this issue first cropped up, a few times of disconnecting & reconnecting the USB cable got the phone working again but after I plugged in another phone to transfer data and reconnected mine, the issue became permanent and continues to persist.The phone charges when connected to the wall but doesn't charge nor does it get detected when plugged into the PC.
Now when I pull the USB cable and stick it into a different port on the PC, for a second or two, the "connected in charging mode" message appears in the pull down menu and Windows detects phone memory/storage briefly before both disappear. I haven't had the opportunity to plug it into a different machine to check whether its being detected but I can assure you that the USB cable isn't the issue as every other phone in the house works with all the cables I have been using ( 3 to be precise - 2 Micromax and a Sony cable).
Another strange thing I think I should mention in the hope that it could lead to a resolution is that ever since this issue started, none of the phones are being detected by fastboot/adb and don't appear in Device Manager under Android Device as Android ADB Interface. Just two days back, I flashed an Xperia M with fastboot but now the phone doesn't show up under Android Devices, just as Sony 0104 or something. Same with a Galaxy Star Pro. I have reinstalled Android SDK, usb drivers, fastboot/adb but no dice. Opening up the command prompt in the adb/fastboot folder and typing fastboot devices doesn't list any of these phones either.
So can someone please help me in determining whether this is a software or a hardware issue? Any suggestions are welcome and truly appreciated. Thanks.