1.Incorrect upgrade will cause damage to your device.
2.Do not power your device off while upgrading.
3.Only firmware version V3.XX.XX can be upgraded to this version.
4.Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device.
5.After upgrading, please restore it to factory defaults and configure the device again.
Số 26 Lô C Trường Sơn, Phường 15, Quận 10, TP. Hồ Chí Minh
