China Telecom IOT SIM can"t connect the nrf cloud.

RE: China Telecom IOT SIM can"t connect the nrf cloud.

xinjiang — Fri, 10 Jul 2020 01:50:07 GMT

I have been using a China Mobile IOT SIM. I still haven't solved the problem that China Telecom can't connect to the cloud. You can close this. I'll try to solve this some other time.

RE: China Telecom IOT SIM can"t connect the nrf cloud.

Simon — Thu, 09 Jul 2020 22:16:55 GMT

I can see that you are getting help with this issue in this ticket, should I close this?

RE: China Telecom IOT SIM can"t connect the nrf cloud.

Simon — Thu, 09 Jul 2020 16:06:21 GMT

I am sorry for the late reply. Currently, a huge portion of the support team is on summer vacation (including many of the nRF9160 experts), so you may experience delayed answers. I will look into your issue in the upcoming days.

Best regards,

Simon

RE: China Telecom IOT SIM can"t connect the nrf cloud.

xinjiang — Fri, 03 Jul 2020 09:48:57 GMT

I added the following configuration in the Kconfig file under the asset_tracker folder, but it still hasn't been resolved.

config ZZHC
    	bool "Self-Registration Daemon"
    	select BSD_LIBRARY
    	select SETTINGS
   	    select AT_CMD
    	select AT_CMD_PARSER
    	select AT_NOTIF
    	select BASE64
    	select JSON_LIBRARY
    	depends on TRUSTED_EXECUTION_NONSECURE

RE: China Telecom IOT SIM can"t connect the nrf cloud.

Simonr — Fri, 03 Jul 2020 08:48:37 GMT

Did you also enable :option:`CONFIG_ZZHC` in Kconfig, and added the necessary dependencies to your project?

Please note that we're entering the summer vacation period here in Norway, so delays must be expected as we are low on staff for the month of July. Sorry about the inconvenience!

Best regards,

Simon

RE: China Telecom IOT SIM can"t connect the nrf cloud.

xinjiang — Fri, 03 Jul 2020 08:22:11 GMT

Following this tutorial, I made the following configuration. The problem remains unresolved.

CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_ZZHC=y

CONFIG_HEAP_MEM_POOL_SIZE=2560

CONFIG_NETWORKING=y
CONFIG_NET_NATIVE=n
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_OFFLOAD=y

CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_FLASH_MAP=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y
CONFIG_NVS=y
CONFIG_SETTINGS_NVS_SECTOR_COUNT=6

RE: China Telecom IOT SIM can"t connect the nrf cloud.

xinjiang — Fri, 03 Jul 2020 06:06:48 GMT

Thank you for your help, I'm going to try this.

RE: China Telecom IOT SIM can"t connect the nrf cloud.

Simonr — Thu, 02 Jul 2020 12:27:02 GMT

Are you using the zzhc library found here in order to register and connect to the China Telecom network?

It seems like the telecom modules that are part of the China Telecom network are required to provide certain information stored on the module to a specific server.

Best regards,

Simon