Notes: 1.Only firmware version V2.4.XX can be upgraded to this version. 2.Incorrect upgrade will damage your device. 3.Please upgrade your device by cable connection. 4.Do not power off the device when upgrading. 5.Please unzip the file you downloaded and use the file ended with "bin" or "trx" to upgrade your device. 6.After upgrading, please restore it to factory defaults and configure the device again.
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