lastly kabla ya ku reflash rom>>.
try this,its a little complex lakini so its better to flash your rom.
You may need to add your device to the "android_winusb.ini" file for the driver. The USB driver for ADB provided by Google only works with a small list of devices (all phones) and will only work "out of the box" on non-listed devices with similar enough hardware. Most of these tablets are NOT going to be on that list so you have to add them to the .ini file and overwrite the one installed by the driver.
HACK DRIVER android_winusb.ini FILE
1. Copy one of the existing sections with two parameters something like this:
Code:
;Moto Sholes
%SingleAdbInterface% = USB_Install, USB\VID_22B8&PID_41DB
%CompositeAdbInterface% = USB_Install, USB\VID_22B8&PID_41DB&MI_01
2. Paste it in between a couple of the other entries
3. Change the device name to whatever you own
4. Go to the device manager
5. Double-click on ADB (which should have an question mark next to it).
6. Select details.
7. From the dropbox select "Device Instance ID" and copy the VID and PID
8. Paste the VID & PID values into the entry you created
9. Either reinstall or update the driver
10. Open Console, cd to the SDK /tools folder and type "adb.exe devices" - your device should now show up as connected (it may show it as a gibberish-looking device ID instead of the name).