HL7900 — AT%IGNSSCEP="DLD" requires URL/username/password — where to obtain them?

IoT Modules
1

Hello,

I’m working with an HL7900 module and trying to download the CEP (ephemeris prediction) file to speed up GNSS TTFF, using the AT%IGNSSCEP command.

Module info (ATI9):

  • Firmware: SWI1350L.4.8.22060521.01 (Release 4.1, build 2026/03/31)
  • Chipset Vendor Stack: BF_CORE_02_02_00_00_60521
  • GNSS: ALT1350_02_02_00_00_55341_IGNSS (build Dec_31_2025)

Issue:
Running AT%IGNSSCEP="DLD" alone returns a plain ERROR (even with AT+CMEE=2 enabled, no +CME ERROR detail is returned — suggesting a parsing/syntax rejection rather than a runtime failure).

Network attach and PDP context are both confirmed active:

AT+CGATT?
+CGATT: 1

AT+CGACT?
+CGACT: 1,1

Querying the command’s expected syntax gives:

AT%IGNSSCEP=?
%IGNSSCEP: ("DLD","CLR","STAT","ERASE","PRECALC"),(URL,username,password)
OK

So it’s clear the command expects a URL, username, and password as parameters — but I can’t find any documentation specifying what these should be, or whether they need to be requested from Sierra Wireless/Semtech.

Related known issue: KAVALAN-1043 (documented as fixed in the Release 4 Customer Release Notes, iGNSS domain) references this exact CEP download failure, and notes that “the CEP file can be successfully downloaded on a laptop using the provided URL, username, and password” — implying these credentials exist and are provided somewhere, but I haven’t been able to locate them.

Question: Could someone confirm:

  1. The correct default CEP server URL for HL7900 modules?
  2. Whether username/password credentials are required, and if so, how to obtain them (per-customer account, distributor-provided, or a shared default)?
  3. The exact syntax for AT%IGNSSCEP=“DLD” with these parameters?

Thanks in advance for any pointers.

2

does this help?

+CREG: 1,"C672","0188A9DE",9
ati3
HL7900.4.5.22060521

OK
at%ignsscep="DLD","https://agnss.airvantage.net/sony/top/1513%5Ecep_pak_2days/cep_pak.bin","",""
OK
3

Yes, it’s that,

thanks