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gianmikro
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Posts: 2
Joined: Mon Jan 18, 2021 6:14 pm

MIKROTIK LHGG + QUECTEL EM12-G

Fri Jan 22, 2021 2:20 pm

Hi everyone ,I had written in other topic already open but I prefer to create a new one also as a log for others.
HARDWARE:
- Microtik LHGG - [firmware ROS 7.1 beta3]
- Modem R11e-LTE6 - [last FW 022]
- Modem Quectel EM12-G [Firmware: EM12GPAR01A21M4G ]
link: https://it.aliexpress.com/item/40012649 ... 4c4d5DAm1u
- Cable IIPEX1 to MHF4 IPEX4
link: https://it.aliexpress.com/item/10050015 ... 4c4d5DAm1u

TOOLS:
- Adapter mpci to m.2 with sim reader:
link: https://trade.aliexpress.com/orderList. ... 1314895026
image: Image
- Adapter m.2 to USB3 with sim reader:
link: https://www.amazon.it/gp/product/B01N9M ... UTF8&psc=1
image: Image

SOFTWARE:
- Winbox 3.27
- QNavigator 1.6.9
link QN: https://cnquectel-my.sharepoint.com/:f ... g?e=PLwQfl
link last fw quectel: https://cnquectel-my.sharepoint.com/:f: ... Q?e=XTRc79

TEST 1
Microtik LHGG + Modem R11e-LTE6 + SIM (LHGG sim-reader)
Result:
OK
- Modem detected
- SIM detected
- OK AT commands
- OK Lock BTS and Band

TEST 2
Microtik LHGG + Modem Quectel EM12-G + SIM (LHGG sim-reader)
Result:
KO
- Modem detected
- SIM no detected
- KO AT commands
- KO Lock BTS and Band
Modem original settings [ PPP & QMI mode]

TEST 3
Microtik LHGG + Modem Quectel EM12-G + SIM (Adapter mpci/m2 sim-reader)
Result:
KO
- Modem detected
- SIM detected
- KO AT commands
- KO Lock BTS and Band
Modem original settings [ PPP & QMI mode]

TEST 4
Microtik LHGG + Modem Quectel EM12-G + SIM (Adapter mpci/m2 sim-reader)
Result:
KO
- Modem detected
- SIM no detected
- OK AT commands
- KO Lock BTS and Band
Modem settings [ MBIM mode]
AT+QCFG ="usbnet", 2

TEST 5
Microtik LHGG + Modem Quectel EM12-G + SIM (LHGG sim-reader)
Result:
KO
- Modem detected
- SIM no detected
- OK AT commands
- KO Lock BTS and Band
Modem settings [ MBIM mode]
AT+QCFG ="usbnet", 2

-
INFO RouterOS:
[admin@MikroTik] > /system resource print                                     
                   uptime: 4m55s
                  version: 7.1beta3 (development)
               build-time: Dec/02/2020 15:59:47
         factory-software: 6.46.6
              free-memory: 110.1MiB
             total-memory: 256.0MiB
                cpu-count: 2
                 cpu-load: 0%
           free-hdd-space: 2240.0KiB
          total-hdd-space: 16.0MiB
  write-sect-since-reboot: 98
         write-sect-total: 98
               bad-blocks: 0%
        architecture-name: arm64
               board-name: RBLHGGR
                 platform: MikroTik

########################################

admin@MikroTik >port print
Flags: I - INACTIVE
Columns: NAME, CHANNELS, USED-BY, BAUD-RATE
  #     NAME     C  USED-BY         BAUD-R
  0     serial0  1  Serial Console  115200
  1  I  usb2     2                    9600
  2  I  usb3     4                    9600

########################################

admin@MikroTik > system resource usb print
Columns: DEVICE, VENDOR, NAME, SPEED
  #  DEV  VENDOR                NAME                  SPEE
  0  3-0  Linux 5.6.3 xhci-hcd  xHCI Host Controller  5000
  1  2-1  Quectel               EM12-G                 480
  2  1-0  Linux 5.6.3 ehci_hcd  EHCI Host Controller   480
  3  2-0  Linux 5.6.3 xhci-hcd  xHCI Host Controller   480
  
  #####################################
  
  /interface lte at-chat lte1 input="AT+CPIN\3F"           
  output: +CME ERROR: SIM not inserted


Can anyone help me to detect the sim?
 
dad2312
Frequent Visitor
Frequent Visitor
Posts: 56
Joined: Sun Nov 17, 2019 12:55 pm

Re: MIKROTIK LHGG + QUECTEL EM12-G

Thu Feb 04, 2021 11:00 pm

try to detach your m2 adapter => mpci because the lhgg radiator presses too much on the sim location of your adapter and causes this message.

even simpler dismantle the radiator from the lhgg and test again
 
Navegador
just joined
Posts: 4
Joined: Wed Jan 13, 2021 4:18 am

Re: MIKROTIK LHGG + QUECTEL EM12-G

Mon Feb 15, 2021 6:22 am

I did the same mod and had the exact same problem. Now I'm posting this using the LHGG with EM12-G. What solved the problem for me was removing the two original thermal pads for the modem and either not using any thermal pads (EM12-G will be OK) or replacing the top one with something much thinner than the Mikrotik original. Don't bother replacing the bottom thermal pad, which was the one that was shorting my adapter's SIM connector - no point in cooling the adapter.

As dad2312 mentions, it's a mechanical problem - the radiator presses the adapter+modem assembly (thicker than the original PCIe modem) and shorts its SIM slot.

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