Take China Mobile's SIM card 1 and China Unicom's SIM card 2 as examples. Enter the information interface and click the corresponding information. In the SMS reading interface, you can see a small icon in the shape of a SIM card next to the SMS receiving time. Whether the name in the icon is China Mobile or China Unicom refers to whether the short message is sent to SIM card 1 or SIM card 2.
If there is no corresponding difference when trying the above methods, it may be caused by an abnormal SMS program. You can download other third SMS software for comparison, or go to System Settings-Application Management-Find the corresponding SMS-Clear Data for improvement. Please back up SMS, contacts and other information before operation to avoid data loss. If it doesn't work, you can back up the fuselage data and restore the factory settings to see if there is improvement. If the situation remains the same after recovery, you can take time to go to a nearby Lenovo authorized maintenance station for specific examination and treatment.