[Resolved]  Tata DoCoMo / 3G E-stick — device not working

Address:

Pune, Maharashtra

I buy a tata docomo Estick MF 631 from retailer ,its working fine , but suddenly the problem occur ,
i reinstall the Os and when i inert the dongle in my laptop i find that there is no drivers or auto run file detected in my docomo estick device then i check with my frnd laptop there also the plug and play not work .and when i insert a 1 gb memory card in the device it is not detected also . i logged a complaint in customer
care then are making me fool that i have to compltely remove the device software , but i know how to uninstall the thing and reinstall as i am a software engineer ,

when i plugin my device again then noting happen even memory card is also not detected.

my device no is 10 digit no or sim no is [protected]
phone no [protected]
contact no is same as above and mail id is [protected]@hotmail.com

i ask them to replace my device also that it is not working they refuse it