SIM info is not read

(used fw13)
root@swi-mdm9x28-wp:~# cm sim info
Type: EXTERNAL_SLOT_1
ICCID:
Home Network Operator:
EID:
IMSI:
Phone Number:
root@swi-mdm9x28-wp:~#

dmesg :
[ 30.443682] i2c-msm-v2 78b8000.i2c: NACK: slave not responding, ensure its powered: msgs(n:1 cur:0 tx) bc(rx:0 tx:2) mode:FIFO slv_addr:0x71 MSTR_STS:0x091343c8 OPER:0x00000090

what is the return of the following AT commands?
AT!ENTERCND=“A710”
AT+CPIN?
AT!UIMS?
at+ccid
AT+CFUN?

sim card is not insert.

then you can insert sim card

I already insert but it seem to not read how can I do??

probably the connection of the metal case or SIM case is not good, you can double check