F3 v4.0 Firmware V03.03.01.40

Upgrade Notes:

1. This firmware is only fit for F3v4.0 and its firmware version must be in V03.03.01.XX or more.

Note: The hardware version marked at the label of devices as below:

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:

1.Modify the connection life time for UDP.

Please contact us if you have questions
support.au@tenda.cn

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