Upgrade Notes:
1. This firmware is only fit for 4G09V1.1 and its firmware version must be in V16.03.07.1X 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. Update the APN information of the United Kingdom, Belgium, and Colombia.
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