AT CSQ returns CME error 604. Quite strange!

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I'm using an SIMCOM, SIM800. This module was working perfectly fine, but suddenly it stopped posting and while debugging I found out that AT+CSQ was returning "+CME ERROR:604" which according to Telit means can not allocate control socket.

Does anyone know what that means? What does the control socket do? It's strange to see the CSQ command fail.

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Clament John | Still in school 

Last Edited: Thu. Jun 1, 2017 - 10:25 AM
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What has this got to do with Atmel microprocessors? (the subject of this message board).

 

Moderator

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I'm sorry, this board was tagged as "Evaluation and Development Kits A discussion forum for evaluation and development kits as well as add-on extensions boards." 
As the SIM800 module, I'm using is an extension/development board being used with my Atmega. So I assumed this was the right board to raise the question.

Clament John | Still in school 

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No - this is an Atmel board, for discussing Atmel products.

 

The SIM800 is not an Atmel product; it is a SIMCOM product - so you would need to contact SIMCOM for specific support on their product.

 

http://simcomm2m.com/En/module/?...

 

http://simcomm2m.com/En/service/

 

EDIT

 

You need to refer to SIMCOM documentation - not Telit - for SIMCOM products!

 

 

Last Edited: Thu. Jun 1, 2017 - 10:23 AM
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It means Atmel eval boards:

 

http://www.atmel.com/products/mi...

 

Not just "any old board that you might happen to connect to a micro which may or may not be an Atmel".

 

Surely SimCom have a support forum? In fact while this is more general than just SimCom there seems to be a lot of support for this kind of module (SIM800, SIM900 etc) at:

 

http://m2msupport.net/m2msupport...

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Alright, thank you for your time. I'll make sure my future questions are more based on Atmel products and about general electronics.
Thank you.

Clament John | Still in school