1.Incorrect upgrade will damage your device.
2.Please upgrade your device by cable connection.
3.Do not power off the device when upgrading.
4.Only version V5.07.XX can be upgraded to this firmware.
5.Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device.
6.After upgrading, please restore it to factory defaults and configure the device again.
UG - 3,4,5,8A and 11, Devika Tower,Nehru Place, New Delhi, India - 110019