# hl6528RD - Error GPS Commands

**URL:** <https://forum.sierrawireless.com/t/hl6528rd-error-gps-commands/17298>\
**Category:** IoT Modules\
**Created:** [August 19, 2019, 2:40pm UTC](https://forum.sierrawireless.com/t/hl6528rd-error-gps-commands/17298 "2019-08-19T14:40:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dbailos](https://avatars.discourse-cdn.com/v4/letter/d/e480ec/32.png) [@dbailos](https://forum.sierrawireless.com/u/dbailos)\
**Post date:** [August 19, 2019, 2:40pm UTC](https://forum.sierrawireless.com/t/hl6528rd-error-gps-commands/17298/1 "2019-08-19T14:40:45Z")

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Hello,

I’m having problems to get the GPS working in my HL6528RD module. It gives me back an error every time I try to send any gps related commands.

I can read these commands:  
AT+CGMI  
Sierra Wireless

AT+CGMM  
HL6528RD-2.8V

AT+CGMR  
RHL6528RD.2.4.3.11CV10F49.201709160006.m6261a\_1

AT+WMGNSSTEST=?  
+CME ERROR: 3

I’ve tried in 3 different modules and it’s always the same response. Driving the module through UART, the GPRS works fine.

I can’t find any other commands than: “AirPrime HL6528RDx - AT Commands Interface Guide” but none of these AT commands seem to work for the GPS.

Any idea?

Thanks