Network operator error

I bought new mangoh yellow.

I use sierra USIM , so Network Operator have to be SK but,

Current Network Operator: KOR LG Uplus

root@swi-mdm9x28-wp:~# cm radio
Power: ON
Current Network Operator: KOR LG Uplus
Current RAT: Module not registered on network, RAT not available
Status: Registration was denied, usually because of invalid access credentials (LE_MRC_REG_DENIED)
Signal: Strong signal strength (4)
PS: Packet Switched Not registered (LE_MRC_REG_NONE)

band problem??

I did it bellow command



AT!BAND=02,“KOR LTE”,0000000000000000,0000000000000010,0000000000



i think you need to use LGU+ PRI FW.
But currently there is no such FW can be downloaded…

I solve this problem thank you!!

BTW, how did you solve?

just waiting!! that’s at all