I have this rb
model: RBSXTR
serial-number: 9CE4091E4DD8
firmware-type: qca9531L
factory-firmware: 6.43.3
current-firmware: 6.44.2
upgrade-firmware: 6.44.2

It reads the sim cards IMSI
pin-status: no password required
functionality: minimum
manufacturer: MikroTik
model: R11e-4G
revision: R11e-4G_V005
imei: 359147090023579
imsi: 001015432100186


but I get these messages no matter what sim card I put in there
12:06:50 lte,async lte1: sent AT+CPIN?
12:06:50 lte,async lte1: rcvd +CME ERROR: SIM failure
12:06:52 lte,async lte1: sent AT+CPIN?
12:06:52 lte,async lte1: rcvd +CME ERROR: SIM failure
12:06:54 lte,async lte1: sent AT+CPIN?
12:06:54 lte,async lte1: rcvd +CME ERROR: SIM failure

does this mean the mk is defective?