This dongle is absolute crap gadget. A company that promises 6.2 Mbps never gave more than 500 Kbps. Now for those who doesnt know that fact of Kbps, download speed is calculated in KBps(capitalB for Byte and Smallb for Bit). 8 Kbps is equal 1 KBps. For more details you can always Google. When I purchased it I always received a speed of 50-70 KBps. Seemed like I was using GPRS, But the worst part was when I suddenly started receiving 2-3 Kbps. Well yes, Kbps with small "b". It was my postpaid plan. I called up customers care and complained about the speed. They kept on saying "Tower Work Going On". for more than 6-7 weeks it was not working. Speed never went above 3 Kbps, yet bill came full 999+Tax. I was literally fed up,
Finally I had to switch to other network. After that I thought my device is kept unused so I will convert it to prepaid. So I went to Showroom at Park Street at kolkata. They told me its not possible to convert it after the deactivation of Postpaid connection. I had to buy a new device for Prepaid service of Tata Photon Max WiFi., I told them that my device is kept unused, The executive told in mocking way that I should either keep it as show piece or I could sell my locked and unusable device on Ebay or Quikr. That comment was really mean.
I hated the service of Tata Photon Max.
If you are planning to buy Dongle then buy anything but not this one please. And it will be wise if you buy prepaid service so that if your service is not given well you can skip their payments.