Hi. I’m testing the RC7620 module with a HL78xx-RC-WP DEV-KIT board (blue pcb) and are trying to get the module to work by connected a Fedora 39 laptop running ModemManager to the main USB port on the dev kit. First of all I can’t find any documentation for the dev kit. So maybe someone can provi…

Can you take a picture of your dev kit? Did you put the boot pin switch to off? Does it work in windows?

Think the boot switch is set to TP1. I havn’t tested on a windows pc yet. [PXL_20240313_155048043]

How about setting the boot switch to off? [image]

Now it boot. thanks :slight_smile: Now I’m having issue with enabling power state(is low): ❯ mmcli -m any ---------------------------------- General | path: /org/freedesktop/ModemManager1/Modem/0 | device id: 838cb1e115e3a02df2cd05f5560b18832696681f …

what are the return of the following AT commands? ATI3 AT!ENTERCND="A710" at!IMAGE? aT!IMPREF? AT+cpin? aT!GSTATUS? at+cfun? aT!PCINFO?

❯ mmcli -m any --command="ATI3" response: 'Manufacturer: Sierra Wireless, Incorporated Model: RC7620 Revision: SWI9X07H_00.09.10.00 85890e jenkins 2023/09/25 03:16:56 IMEI: 353634110876389 IMEI SV: 29 FSN: CM4036250301B1 +GCAP: +CGSM' ❯ mmcli -m any --command='AT!ENTERCND="A710"' response: '' ❯ m…

the “Volt:1” in AT!PCINFO shows there is abnormal voltage problem on your board. Not sure if you should use the same jumper as my picture on right bottom corner, you can give a try

Actually I’m not sure what the input voltage should be. I’m using 5V DC on the banana plugs. Is that correct?

you can just use the USB power to supply power to the board

Okay thanks. It works now by removing the power via the banana plugs and moving the jumper to USB_VBUS and connecting the dev kit board via main USB.

RC7620 with HL78xx-RC-WP DEV-KIT board

IoT Modules RC76

jyijyi March 13, 2024, 4:06pm 4

How about setting the boot switch to off?

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RC7620 with HL78xx-RC-WP DEV-KIT board

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