My modem, an EP06-E, lost the ability of making calls, GNSS and send SMS after upgrade to the last firmware. (v A20), before the upgrade, the modem did all supported functions, but with unstable data (internet) connection.
After the upgrade, data connection got consistent and stable, but all other supported functions are gone…
Any ideas or suggestions will be highly appreciated.
/* Start AT SYNC: Send AT every 500ms, if receive OK, SYNC success, if no OK return after sending AT 10 times, SYNC fail */
[2023-11-14 00:15:56:955_S:] AT
[2023-11-14 00:15:57:011_R:] AT
[2023-11-14 00:15:57:011_R:] OK
[2023-11-14 00:15:57:013_S:] ATI
[2023-11-14 00:15:57:066_R:] ATI
[2023-11-14 00:15:57:066_R:] Quectel
[2023-11-14 00:15:57:066_R:] EP06
[2023-11-14 00:15:57:066_R:] Revision: EP06ELAR04A20M4G
[2023-11-14 00:15:57:066_R:] OK
[2023-11-14 00:15:57:069_S:] ATI
[2023-11-14 00:15:57:122_R:] ATI
[2023-11-14 00:15:57:122_R:] Quectel
[2023-11-14 00:15:57:122_R:] EP06
[2023-11-14 00:15:57:122_R:] Revision: EP06ELAR04A20M4G
[2023-11-14 00:15:57:122_R:] OK
/* Use ATV1 to set the response format */
[2023-11-14 00:15:57:328_S:] ATV1
[2023-11-14 00:15:57:381_R:] ATV1
[2023-11-14 00:15:57:381_R:] OK
/* Use ATE1 to enable echo mode */
[2023-11-14 00:15:57:632_S:] ATE1
[2023-11-14 00:15:57:686_R:] ATE1
[2023-11-14 00:15:57:686_R:] OK
/* Use AT+CMEE=2 to enable result code and use verbose values */
[2023-11-14 00:15:57:836_S:] AT+CMEE=2
[2023-11-14 00:15:57:895_R:] AT+CMEE=2
[2023-11-14 00:15:57:895_R:] OK
/* Get the baudrate, if the value is 0 (auto baudrate), then it will be set to 115200 (fixed baudrate) to assure reliable communication and avoid any problems caused by undetermined baudrate between DCE and DTE, value of IPR should be saved with AT&W */
[2023-11-14 00:15:58:149_S:] AT+IPR?
[2023-11-14 00:15:58:203_R:] AT+IPR?
[2023-11-14 00:15:58:203_R:] +IPR: 115200
[2023-11-14 00:15:58:203_R:] OK
/* Use ATI to get module information of Manufacturer ID, Device module and Firmware version */
[2023-11-14 00:15:58:254_S:] ATI
[2023-11-14 00:15:58:308_R:] ATI
[2023-11-14 00:15:58:308_R:] Quectel
[2023-11-14 00:15:58:308_R:] EP06
[2023-11-14 00:15:58:308_R:] Revision: EP06ELAR04A20M4G
[2023-11-14 00:15:58:308_R:] OK
[2023-11-14 00:15:58:316_S:] AT+QURCCFG=“URCPORT”,“usbat”
[2023-11-14 00:15:58:370_R:] AT+QURCCFG=“URCPORT”,“usbat”
[2023-11-14 00:15:58:370_R:] OK
/* Use AT+CPIN? to query the SIM card status : SIM card inserted or not, locked or unlocked */
[2023-11-14 00:15:58:877_S:] AT+CPIN?
[2023-11-14 00:15:58:931_R:] AT+CPIN?
[2023-11-14 00:15:58:931_R:] +CPIN: READY
[2023-11-14 00:15:58:931_R:] OK
/* Use AT+CIMI to query the IMSI of SIM card */
[2023-11-14 00:15:59:049_S:] AT+CIMI
[2023-11-14 00:15:59:102_R:] AT+CIMI
[2023-11-14 00:15:59:102_R:] 240078237247914
[2023-11-14 00:15:59:102_R:] OK
/* Use AT+QCCID to query ICCID number of SIM card */
[2023-11-14 00:15:59:256_S:] AT+QCCID
[2023-11-14 00:15:59:310_R:] AT+QCCID
[2023-11-14 00:15:59:310_R:] +QCCID: 89462048009165471765
[2023-11-14 00:15:59:310_R:] OK
/* Use AT+CSQ to query current signal quality */
[2023-11-14 00:15:59:362_S:] AT+CSQ
[2023-11-14 00:15:59:416_R:] AT+CSQ
[2023-11-14 00:15:59:416_R:] +CSQ: 19,99
[2023-11-14 00:15:59:416_R:] OK
/* Use AT+CREG? /AT+CGREG? to query the network registration status. */
[2023-11-14 00:15:59:424_S:] AT+CREG?
[2023-11-14 00:15:59:483_R:] AT+CREG?
[2023-11-14 00:15:59:483_R:] +CREG: 0,1
Hello @jfrog
Good Morning, What set of commands I can use to re-enable all features back?
I’ve tried to reset the modem without any results.
AT&F don’t worked.
Thank you beforehand
Hello @jfrog
Thanks for the gps commands, I’ll try later.
Do you have any ideas to restore phone calls and SMS abilities?
Once again, thank you.
Have a nice evening