Modem FW 1.3.6 Error 0x10

[mrks115]

Hey,

seen again a modem fault, from a device in field, no further debug information available.

• nRF9160
• Modem FW: 1.3.6
• Modem Fault Type: 0x10
• Modem Fault PC: 0x9900E
• System Mode LTE-M + NB-IoT + GNSS
  • Connection was via LTE-M
• Modem is turned on/off every 5 mins.

Hope that helps finding an issue :)

Best regards,
Markus

[mrks115]

Hi Dejan,

sorry for late reply, I was on vacation.

Unfortunately we still can't provide more info as these devices are out in the field and the faults are occurring not regularly.

Since some time passed by, we have observed some more modem faults from our devices. I'll post them here, but if you want a new ticket for that I'll create that.

Device 3495 (2024-04-07 17:47:24)

• Modem: mfw_nrf9160_1.3.6
• Modem Fault Type: 0x06
• Modem Fault PC: 0x7624A
• System Mode LTE-M + NB-IoT + GNSS
• Connection was via LTE-M
• PLMN 26201 (Telekom Germany)
  • Cell and Area change before and after fault
  • TAC 28502 → 13900
  • Cell 32601621 → 33863937
• Device was moving

Device 1853 (2024-04-06 11:56:15)

• Modem: mfw_nrf9160_1.3.6
• Modem Fault Type: 0x06
• Modem Fault PC: 0x11070A
• System Mode LTE-M + NB-IoT + GNSS
• Connection was via LTE-M
• PLMN 26201 (Telekom Germany)
  • No info about device before fault
  • TAC 28502
  • Cell 35094018
• Device was stationary

Device 1418 (2024-04-04 22:36:09)

• Modem: mfw_nrf9160_1.3.6
• Modem Fault Type: 0x10
• Modem Fault PC: 0x74D3E
• System Mode LTE-M + NB-IoT + GNSS
• Connection was via NB-IoT
• PLMN 22210 (Italy)
  • Cell change before and after fault (same area)
  • TAC 27092
  • Cell 11837553 → 12746352
• Device was moving

Device 1853 (2024-03-23 19:06:41)

• Modem: mfw_nrf9160_1.3.6
• Modem Fault Type: 0x10
• Modem Fault PC: 0x9900E
• System Mode LTE-M + NB-IoT + GNSS
• Connection was via LTE-M
• PLMN 26201 (Telekom Germany)
  • Cell change before and after fault (same area)
  • TAC 28502
  • Cell 35094018 → 35094016
• Device was stationary

Everything else you asked in this thread does also apply to these devices.

Hope that helps finding some issues 

Best regards,
Markus

[dejans]

Hi Markus,

Thank you for additional information.

Could you please provide exact location(s) for mentioned faults? For example, cell id (global) from +CEREG, or %XMONITOR, or even GNSS location?

Best regards,
Dejan

[mrks115]

Hi,

I added TAC and Cell ID to the original post.

Best regards,
Markus

[dejans]

Hi Markus,

Thank you for providing additional information.

We will look into it during next week. I will get back to you hopefully by the end of next week.

Best regards,
Dejan

[dejans]

Hi Markus, 

This is to inform you that we plan Nodic R&D to be onsite during next week for field testing to possibly catch reported issue. Please let me know if you have any updated input or suggestion for testing.

Best regards,
Dejan

[mrks115]

Hi,

we've seen another device with a modem fault:

Device 6977 (2024-04-15 07:42:18)

• Modem: mfw_nrf9160_1.3.6
• Modem Fault Type: 0x10
• Modem Fault PC: 0x7B32C
• System Mode LTE-M + NB-IoT + GNSS
• Connection was via LTE-M
• PLMN 26201 (Telekom Germany)
  • Cell change before and after fault (same area)
  • TAC 13601
  • Cell 33865472 → 33865476
  • RSRP -108 → -105
  • RSRQ -17 → -14
• Loc 51.112146, 6.821387
• Device was moving

Besides that I have no new information for you. If you have any further questions feel free to ask.

Hope you're successful next week

Best regards,
Markus

[dejans]

Hi Markus,

Thank you for the information provided so far.

As said previously, we will look further into this issue next week. I will get back to you after our testing gets completed.

Best regards,
Dejan