Modem UBports edition Celluar not working

[LazLong]

Hey,

 Take a look here  https://bloggerbust.ca/post/install_and_...-the-shell

specifically the section on usim detection

Thanks!  Will do!  Much appreciated.

I have ran across a couple other sources of information on the modem but have not had the time to delve into the particulars including
a few pdfs including this one:

https://www.quectel.com/UploadImage/Down...l_V1.3.pdf

Quectel.com also has some scattered information including references to EC25 and flashing/updating firmware

      https://forums.quectel.com/t/ec25-flash-...error/5214

In addition some possibly interesting stuff at osmocom.org I have barely looked at osmocom.org including:

      https://projects.osmocom.org/projects/qu.../wiki/EC25

Most of the information seems a few years old but is surely for the most part relevant.

Thank you again.

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Curious,  have you attempted to use the software update feature on Mobian O.S. with the 'firmware updates' checked ?
  Top right corner of the main software page, under preferences ?
    You said your wifi is working  ?   * * *  (  I am not a tech, so my ideas could be mistaken )

 I asked for more information about those choices in another thread,  but I have not got a response to that post yet.

  I am thinking this could likely be a firmware problem....  The Brave Heart seems to be affected more than the Community Editions.???

I took your suggestion.  I had not been running the updates but did so with the 8-2 and 8-3 Mobian nightly builds.  The sim is still not being detected.  Went back and tried it in the newer PostMarketOS factorytest version and same negative result that the sim card was not found.

Apparently, my situation is rather unique or rare in that no one else seems to be experiencing a complete failure of there Braveheart to pass the EC25 factorytest or to detect a working sim card in multiple OS's (UBPorts, Mobian, PureOS, and PostMarketOS).

Dissapointed but if that is the case as evidenced by few if any other reports of this problem with the Braveheart then I guess I'll be relegated to waiting for the new PinePhone with Convergence and hopefully will have much better luck with it since there are several modem related hardware fixes in that V1.2 mainboard revision.

Anyone know when a V1.2 replacement mainboard for the Pinehone might be available in the store for those of us for one reason or another that could use one?

  Are you certain of your sim card itself ?

   I am unable to activate a new sim card in my Brave Heart,
but it does work fairly well with the sim card I removed from my Android phone.

===========================

I hear you bcnaz.  Thank you for your thoughts and relating your experience.

I did not expect to be able to necessarily activate a new sim with the BH and that turned out to be the case.  After activating a couple sims on an android phone (from carriers that folks have reported good results including AT&T) the sim cards have been missing in action on the BH.  Both sims work fine and seamlessly in an iPhone as well.

Hope it is not the case but I suppose the BH may be inordinately finicky with sim cards.

I am leaning to a hardware or firmware problem so if cannot wake the thing up with some AT commands or scripts as time allows am going to pursue trying to flash the modem.

If anyone has had luck flashing the EC25 would appreciate hearing your methods used and any advice.  I and the BH are a work in progress.  Ha!