Please choose the correct version to upgrade for the device to follow local country regulations
It is NOT suggested to upgrade firmware which is not for your region. 
Release Note

1. Add Vlan function, Support the management of the computer management software.

2. Add coverage-oriented mode.  

3.Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device.

4.After upgrading, please restore it to factory defaults and configure the device again.