Lenovo s820 Telecom's customized dual-card mobile phone secondary card cannot send short messages online.

I'm sorry for the inconvenience.

The card slot 1 of Lenovo S820e mobile phone can support telecom cards and mobile/Unicom cards (in the case of international roaming), and the card slot 2 supports mobile/Unicom cards, so if it is normal to put a telecom card in your card slot 2, please understand.

If you put the mobile/Unicom card into your card slot, you can refer to the following scheme here:

Lenovo S820e is a telecom equipment, and its card slot 2 can only be used for making phone calls and sending short messages, but it can only be used for surfing the Internet. Therefore, please forgive me if I can't send and receive MMS and surf the Internet.

If you send a short message instead of a multimedia message, you can refer to the following scheme at this time:

1. I suggest you confirm whether your mobile phone is in arrears first. If so, please make up the fee with the operator and try again.

2. Please confirm again whether the SMS can't be sent to all contacts normally. If it is a personal contact, I suggest you recall whether you have set up a blacklist of relevant contacts, or use some third-party SMS interception related functional software;

3. Rule out the above possibility, or 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 (or Lenovo Address Book)-Clear the data for improvement. Please back up SMS, contacts and other information before operation to avoid data loss.

4. If possible, it is recommended to replace other SIM cards to see if you can send short messages normally, and it is not excluded that it is caused by the abnormality of your SIM card;

5. It cannot be improved after the above operations. I suggest you back up the fuselage data and restore the factory settings to see if it can be improved.

If the problem still cannot be effectively solved, for your normal use in the future, it is recommended that you take time to go to a nearby Lenovo authorized repair station for specific inspection and treatment.

Lenovo authorized maintenance site inquiry:/Lenovo/WSI/station/servicestation/default.aspx? intcmp=MIDH

If you have any other questions in the subsequent use, please feel free to contact us or visit Lenovo Lewen Bar () for consultation.