Undocumented side-effect of AT+COPS=0

There is nothing in the documentation to indicate that issuing AT+COPS=0 will, “reset the PLMN search” - but this does, in fact, seem to be the case!

For example:

In such a case, it does seem that issuing AT+COPS=0 will, indeed, “reset the PLMN search” - and will allow the module to escape from the “stuck” state!

Can anyone else corroborate this?

Are there any other undocumented side-effects?

I’ve seen a reference to AT+COPS=0 in PLMN Selection and Reselection Application Note, it’s the first FAQ question.

Can you give the specific reference for that - document number, etc?

Can you give a link?

Do you mean this: sierrawireless.com/en/sitec … ev003.ashx :question:

That is: Document reference WM_DEV_OAT_APN_008; Rev 003; February 11, 2010

So why on earth is that not stated in the AT Commands Reference :question: :unamused: :angry:

It has now been posted in a FAQ post :slight_smile:

But is still not mentioned in the AT Commands manual :angry:

https://forum.sierrawireless.com/t/plmn-selection-order-in-automatic-mode-use-of-at-cops-0/6181/1

Seems to have now moved to:

developer.sierrawireless.com/Res … 0note.aspx