You can't select a contact for group SMS.

Hello, thank you for choosing Lenovo products.

I'm sorry for the inconvenience.

This mode supports mass short messages; You can also use English comma ","to separate two sent mobile phone numbers. You can also refer to the following icons:

For adding groups, please refer to:

If you still can't select and use the group normally, because the problem still exists after your recovery, the possibility that the SIM card is abnormal or the system is rooted or modified cannot be ruled out. For the former, I suggest you change another SIM card and continue to try.

For the latter, you may need to brush the machine, but there are certain risks in self-brushing, and the failure of brushing will affect the normal warranty of your equipment. So we don't recommend that you brush the machine yourself. You can choose to go to the local after-sales site and ask the engineer for assistance. Lenovo authorized maintenance site inquiry:/Lenovo/WSI/station/servicestation/default.aspx? intcmp=MIDH

If you are willing to take your own risks, I personally suggest that you refer to the following link:/? q- 1 1 1459 . html

Contains related firmware and tutorials, etc. Please read the choice carefully before brushing the machine. If you can't handle it yourself, please refer to our suggestion and go to the maintenance station to handle it.

Thank you for your support to Lenovo and wish you a happy life!