Hardware Version: V2.1

Software Version: V16.03.07.16

Upgrade Notes:

1. This firmware isonly fit for 4G06V2.1 and its firmware version must be in V16.03.07.xx or more.

Note: Please confirm thehardware version in device GUI: Basic Information->Hardware Version before upgrade

2. Do not power offthe device when upgrading.

3. Please unzip thefile you downloaded and use the file ended with "bin" or"trx" to upgrade your device.

4. Please reset itto factory settings after upgraded it.

Release Notes:

 1. Updated APN compatible list.