Hardware Version: V4.0

Upgrade Notes:

1. This firmware is only fit for FH456V4.0 and its firmware version must be in V12.01.01.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:

1. One less space after wireless timer switch Wednesday.