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.Universal reapeter feature is added in this version, plus, it makes A30's SSID contain more special characters on the keyboard.
5.Only firmware version V5.07.XX can be upgraded to this firmware.
6.Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device.