ES-4000 Firmware Release Note

Firmware version: 3.09
Release time: 2009/11/27
MD5 Checksum: d0efd76edebdcaa33989a58ad1ab5329

Added:
1. Mail Management > Configuration > Settings; add "Reverse DNS Lookup", "Block Dictionary Attacks", and "SMTP Recipient Limit" function.

Attention:
1. When you download the new firmware from AirLive website, we strongly suggest you to verify files' checksum before you upgrade new firmware to device. 
2. You can download the latest version tool from http://www.md5summer.org/ website. For the procedure to check MD5 checksum please refer to MD5Summer document.
3. Downgrade firmware will remove the data of original account and address book, when you downgrade firmware, you have to reset and format the device as default setting.
4. If device's current firmware version is earlier than v1.12, please do not upgrade v2.09. You must upgrade ES-4000 to v1.12 first, then to upgrade device to 2.09.
5. To downgrade Firmware will lose account and shared address book setting; if user needs to downgrade firmware, it is necessary to reset device as default setting.