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Can Unicom 3g card information be received? Error code 38. What should we do?

In case of communication problems during use, feedback can be given in the following ways:

Log in to the online business hall of China Unicom, and click the floating window on the right > Customer Service > Manually enter online customer service consultation/feedback;

Log in to China Unicom APP > Services > Customer Service > Online Customer Service > Transfer to Labor, and enter online customer service consultation/feedback;

Wechat login binds "China Unicom Micro Hall" > turns to manual, and accesses online customer service consultation/feedback.