1. This process is a special process for 2G/4G models. <br>2. GPRS signal value is required to be no less than 23. <br>3. No shielding box is required for testing.
1. This process is dedicated to the 2G/4G model.<br>2. GPRS signal value requirements are not less than 23.<br>3. The shield box is not required for testing.