1.Incorrect upgrade will damage your device.
2.Please upgrade your device by cable connections.
3.Only firmware version V12.01.01.XX can be upgraded to this firmware.
4.Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device.
5.Do not power off the device when upgrading.
Tenda Technology (Philippines) Inc., Sacred Heart St. Horseshoe Village, Quezon City, Philippines 1112