# PLMN selection order in automatic mode & use of at+cops=0

**URL:** <https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181>\
**Category:** Documentation feedback\
**Created:** [February 26, 2013, 1:57pm UTC](https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181 "2013-02-26T13:57:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [February 26, 2013, 1:57pm UTC](https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181/1 "2013-02-26T13:57:06Z")

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> [@FAQ\_Poster](#):
>
> Issuing the command AT+COPS=0, forces a complete scan of all the available PLMNs

This is still not documented in the AT Commands manual (at rev 7.51)

[forum.sierrawireless.com/viewto … rch#p22090](https://forum.sierrawireless.com/t/undocumented-side-effect-of-at-cops-0/4871/1)

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**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [February 27, 2013, 9:30am UTC](https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181/2 "2013-02-27T09:30:52Z")

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Hi awneil,

This behavior is defined in the 3GPP standard, that’s why we’ve added a clarification post in the FAQ.

Thanks,

FAQ\_Poster

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [February 27, 2013, 9:53am UTC](https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181/3 "2013-02-27T09:53:37Z")

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This is basic information which should be clearly stated in the AT Commands manual.

Don’t get me wrong; it’s great to see all these FAQ entries now appearing - but, again, it really mustn’t be used as a substitute for proper, clear, complete base documentation:

> [@On 26 Jul 2009](#):
>
> I do think that a FAQ is a good idea - but it mustn’t be used as an excuse for not fixing “mainstream” documentation…
> 
> [FAQ forum/wiki? - #5 by awneil](https://forum.sierrawireless.com/t/faq-forum-wiki/3491/5)

See also [FAQ forum/wiki? - #5 by awneil](https://forum.sierrawireless.com/t/faq-forum-wiki/3491/5) etc,…

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**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [February 27, 2013, 11:55am UTC](https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181/4 "2013-02-27T11:55:53Z")

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Hi awneil,

We’re constantly trying to improve our documentation and we’ll take this into account too.

It has also been posted as an FAQ as we consider that it can be helpful for the community .

Thanks for your feedback,

Regards,

FAQ\_Poster

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [February 27, 2013, 4:17pm UTC](https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181/5 "2013-02-27T16:17:46Z")

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> [@FAQ\_Poster](#):
>
> we consider that it can be helpful for the community

Absolutely. Not questioning that at all ❗