1. This firmware is only fit for 4G08V1.0 and its firmware version must be in V04.08.01.XX 

2. Do not downgrade to lower version. If do, it will not allow to change the configurations even damage the router.

Different hardware versions cannot be upgraded to each other.

3. Do not power off the device when upgrading.

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

Note：

1. Added 4G+ status display. 

2. Optimized UI interface translation and prompts. 

3. Incorporated the latest APN information to enhance carrier compatibility