Hello,
I have a similar error +CME ERROR:10 on BG95-M3 on UMTS<E EVB
The same kit and SIM works fine on a EC25-E and EG91.
[2022-10-17 16:43:37:670_R:] +CFUN: 1
[2022-10-17 16:43:37:780_R:] DSR:0 CTS:1 (RI:0) DCD:0
[2022-10-17 16:43:39:040_R:] APP RDY
/* Use AT+CPIN? to query the SIM card status : SIM card inserted or not, locked or unlocked */
[2022-10-17 16:43:47:703_S:] AT+CPIN?
[2022-10-17 16:43:47:718_R:] AT+CPIN?
[2022-10-17 16:43:47:718_R:] +CME ERROR: 10
/* Make sure SIM card is inserted */
/* Use AT+QCCID to query ICCID number of SIM card */
[2022-10-17 16:43:51:879_S:] AT+QCCID
[2022-10-17 16:43:51:897_R:] AT+QCCID
[2022-10-17 16:43:51:897_R:] +CME ERROR: 13
[2022-10-17 16:48:26:080_S:] AT+QSIMSTAT?
[2022-10-17 16:48:26:093_R:] AT+QSIMSTAT?
[2022-10-17 16:48:26:093_R:] +QSIMSTAT: 1,2
[2022-10-17 16:48:26:093_R:] OK
[2022-10-17 16:48:28:288_S:] AT+QSIMDET?
[2022-10-17 16:48:28:301_R:] AT+QSIMDET?
[2022-10-17 16:48:28:301_R:] +QSIMDET: 1,1
[2022-10-17 16:48:28:301_R:] OK
[2022-10-17 17:21:46:664_S:] AT+CMEE=1
[2022-10-17 17:21:46:681_R:] AT+CMEE=1
[2022-10-17 17:21:46:681_R:] OK
[2022-10-17 17:21:49:194_S:] AT+CSQ
[2022-10-17 17:21:49:209_R:] AT+CSQ
[2022-10-17 17:21:49:209_R:] +CSQ: 99,99
[2022-10-17 17:21:49:209_R:] OK
[2022-10-17 17:21:50:560_S:] AT+CPIN?
[2022-10-17 17:21:50:569_R:] AT+CPIN?
[2022-10-17 17:21:50:569_R:] +CME ERROR: 10
[2022-10-17 17:21:52:369_S:] AT+QSIMDET?
[2022-10-17 17:21:52:369_R:] AT+QSIMDET?
[2022-10-17 17:21:52:386_R:] +QSIMDET: 1,1
[2022-10-17 17:21:52:386_R:] OK
[2022-10-17 17:21:52:944_S:] AT+QSIMSTAT?
[2022-10-17 17:21:52:953_R:] AT+QSIMSTAT?
[2022-10-17 17:21:52:953_R:] +QSIMSTAT: 1,2
[2022-10-17 17:21:52:953_R:] OK
[2022-10-17 17:22:02:874_S:] ati
[2022-10-17 17:22:02:887_R:] ati
[2022-10-17 17:22:02:887_R:] Quectel
[2022-10-17 17:22:02:887_R:] BG95-M3
[2022-10-17 17:22:02:887_R:] Revision: BG95M3LAR02A03
[2022-10-17 17:22:02:887_R:] OK
[2022-10-17 17:22:02:887_R:] OK
[2022-10-17 17:25:15:264_S:] AT+GSN
[2022-10-17 17:25:15:281_R:] AT+GSN
[2022-10-17 17:25:15:281_R:] 864475041499616
[2022-10-17 17:25:15:281_R:] OK
[2022-10-17 17:25:23:518_S:] AT+CIMI
[2022-10-17 17:25:23:523_R:] AT+CIMI
[2022-10-17 17:25:23:523_R:] ERROR