Question:

【What is the product model?】:USR-G800-AU

【Where do you purchase the products?】: en.usr.cn

【Is this your first time to use this product? If not how long do you use USR device?】: Yes

【What's the firmware version?(You can get firmware version from AT command AT+VER or settings webpage)】: V1.0.25(EN)

【How do you connect and configure the USR device?】: Connect with AT&T US GSM sim. 

【What's your application? What do you want to realize?】: Running a testing environment in US for a Pilot project in Australia. Since our factory sent us this Unit (AU) model , is there a way we can upgrade or change the firmware of AU model to US model? Or do we have to purchase a specific US model ?  

Issue seen : Device Does NOT connect to 3G/4G network at all. 

Answer:

Hi，You must purchase a specific US model :USR-G806-A 

How to buy:https://en.usr.cn/4g-lte-router/4G-LTE-ROUTER

with best regards

 Image of American version Industrial LTE 4G Router with WIFI/Watchdog gets ATT certification