Upgrade Notes:
1. This firmware is only fit for V300v3.0 and its firmware version must be in V56.1.1.XX or more.
2. Do not power off the device when upgrading.
3. Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device.
4. Please reset it to factory settings after upgraded it.
Release Notes:
Số 26 Lô C Trường Sơn, Phường 15, Quận 10, TP. Hồ Chí Minh
